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Finding the Fourth Proportional to 402.59, 604.16 and 146.09

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Solution

The fourth proportional to 402.59, 604.16 and 146.09 is: 219.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.59 : 604.16 = 146.09 : x
  2. Step 2: Convert to fraction form
    402.59/604.16 = 146.09/x
  3. Step 3: Cross multiply
    402.59x = 604.16 × 146.09
  4. Step 4: Simplify right side
    402.59x = 88,264.18
  5. Step 5: Solve for x
    x = 88,264.18/402.59
  6. Step 6: Final answer
    x = 219.24

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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.