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Finding the Fourth Proportional to 637.53, 957.24 and 313.13

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Solution

The fourth proportional to 637.53, 957.24 and 313.13 is: 470.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.53 : 957.24 = 313.13 : x
  2. Step 2: Convert to fraction form
    637.53/957.24 = 313.13/x
  3. Step 3: Cross multiply
    637.53x = 957.24 × 313.13
  4. Step 4: Simplify right side
    637.53x = 299,735.78
  5. Step 5: Solve for x
    x = 299,735.78/637.53
  6. Step 6: Final answer
    x = 470.15

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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.