Home / 738,143.80-1,107,215.71-177,178.30

Finding the Fourth Proportional to 738,143.80, 1,107,215.71 and 177,178.30

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Solution

The fourth proportional to 738,143.80, 1,107,215.71 and 177,178.30 is: 265,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,143.80 : 1,107,215.71 = 177,178.30 : x
  2. Step 2: Convert to fraction form
    738,143.80/1,107,215.71 = 177,178.30/x
  3. Step 3: Cross multiply
    738,143.80x = 1,107,215.71 × 177,178.30
  4. Step 4: Simplify right side
    738,143.80x = 196,174,597,231.09
  5. Step 5: Solve for x
    x = 196,174,597,231.09/738,143.80
  6. Step 6: Final answer
    x = 265,767.45

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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.