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Finding the Fourth Proportional to 285.83, 429.15 and 177.29

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Solution

The fourth proportional to 285.83, 429.15 and 177.29 is: 266.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.83 : 429.15 = 177.29 : x
  2. Step 2: Convert to fraction form
    285.83/429.15 = 177.29/x
  3. Step 3: Cross multiply
    285.83x = 429.15 × 177.29
  4. Step 4: Simplify right side
    285.83x = 76,084.00
  5. Step 5: Solve for x
    x = 76,084.00/285.83
  6. Step 6: Final answer
    x = 266.19

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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.