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Finding the Fourth Proportional to 266,281.22, 399,425.38 and 88,788.32

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Solution

The fourth proportional to 266,281.22, 399,425.38 and 88,788.32 is: 133,183.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,281.22 : 399,425.38 = 88,788.32 : x
  2. Step 2: Convert to fraction form
    266,281.22/399,425.38 = 88,788.32/x
  3. Step 3: Cross multiply
    266,281.22x = 399,425.38 × 88,788.32
  4. Step 4: Simplify right side
    266,281.22x = 35,464,307,734.31
  5. Step 5: Solve for x
    x = 35,464,307,734.31/266,281.22
  6. Step 6: Final answer
    x = 133,183.66

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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.