Home / 738,101.10-1,107,151.65-205,704.30

Finding the Fourth Proportional to 738,101.10, 1,107,151.65 and 205,704.30

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Solution

The fourth proportional to 738,101.10, 1,107,151.65 and 205,704.30 is: 308,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,101.10 : 1,107,151.65 = 205,704.30 : x
  2. Step 2: Convert to fraction form
    738,101.10/1,107,151.65 = 205,704.30/x
  3. Step 3: Cross multiply
    738,101.10x = 1,107,151.65 × 205,704.30
  4. Step 4: Simplify right side
    738,101.10x = 227,745,855,157.10
  5. Step 5: Solve for x
    x = 227,745,855,157.10/738,101.10
  6. Step 6: Final answer
    x = 308,556.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.