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Finding the Fourth Proportional to 429.47, 592.20 and 373.71

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Solution

The fourth proportional to 429.47, 592.20 and 373.71 is: 515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.47 : 592.20 = 373.71 : x
  2. Step 2: Convert to fraction form
    429.47/592.20 = 373.71/x
  3. Step 3: Cross multiply
    429.47x = 592.20 × 373.71
  4. Step 4: Simplify right side
    429.47x = 221,311.06
  5. Step 5: Solve for x
    x = 221,311.06/429.47
  6. Step 6: Final answer
    x = 515.32

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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.