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Finding the Fourth Proportional to 288,375.80, 432,596.10 and 88,694.60

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Solution

The fourth proportional to 288,375.80, 432,596.10 and 88,694.60 is: 133,051.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,375.80 : 432,596.10 = 88,694.60 : x
  2. Step 2: Convert to fraction form
    288,375.80/432,596.10 = 88,694.60/x
  3. Step 3: Cross multiply
    288,375.80x = 432,596.10 × 88,694.60
  4. Step 4: Simplify right side
    288,375.80x = 38,368,938,051.06
  5. Step 5: Solve for x
    x = 38,368,938,051.06/288,375.80
  6. Step 6: Final answer
    x = 133,051.87

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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.