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Finding the Fourth Proportional to 1,165.01, 1,747.51 and 299.25

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Solution

The fourth proportional to 1,165.01, 1,747.51 and 299.25 is: 448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.01 : 1,747.51 = 299.25 : x
  2. Step 2: Convert to fraction form
    1,165.01/1,747.51 = 299.25/x
  3. Step 3: Cross multiply
    1,165.01x = 1,747.51 × 299.25
  4. Step 4: Simplify right side
    1,165.01x = 522,941.62
  5. Step 5: Solve for x
    x = 522,941.62/1,165.01
  6. Step 6: Final answer
    x = 448.88

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Double scale
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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.