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Finding the Fourth Proportional to 501.30, 750.53 and 318.24

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Solution

The fourth proportional to 501.30, 750.53 and 318.24 is: 476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.30 : 750.53 = 318.24 : x
  2. Step 2: Convert to fraction form
    501.30/750.53 = 318.24/x
  3. Step 3: Cross multiply
    501.30x = 750.53 × 318.24
  4. Step 4: Simplify right side
    501.30x = 238,849.46
  5. Step 5: Solve for x
    x = 238,849.46/501.30
  6. Step 6: Final answer
    x = 476.46

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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.