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Finding the Fourth Proportional to 500.16, 750.24 and 419.52

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Solution

The fourth proportional to 500.16, 750.24 and 419.52 is: 629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.16 : 750.24 = 419.52 : x
  2. Step 2: Convert to fraction form
    500.16/750.24 = 419.52/x
  3. Step 3: Cross multiply
    500.16x = 750.24 × 419.52
  4. Step 4: Simplify right side
    500.16x = 314,740.68
  5. Step 5: Solve for x
    x = 314,740.68/500.16
  6. Step 6: Final answer
    x = 629.28

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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.