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Finding the Fourth Proportional to 472.57, 652.12 and 361.87

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Solution

The fourth proportional to 472.57, 652.12 and 361.87 is: 499.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.57 : 652.12 = 361.87 : x
  2. Step 2: Convert to fraction form
    472.57/652.12 = 361.87/x
  3. Step 3: Cross multiply
    472.57x = 652.12 × 361.87
  4. Step 4: Simplify right side
    472.57x = 235,980.13
  5. Step 5: Solve for x
    x = 235,980.13/472.57
  6. Step 6: Final answer
    x = 499.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.