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Finding the Fourth Proportional to 288,310.73, 432,507.42 and 88,647.89

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Solution

The fourth proportional to 288,310.73, 432,507.42 and 88,647.89 is: 132,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,310.73 : 432,507.42 = 88,647.89 : x
  2. Step 2: Convert to fraction form
    288,310.73/432,507.42 = 88,647.89/x
  3. Step 3: Cross multiply
    288,310.73x = 432,507.42 × 88,647.89
  4. Step 4: Simplify right side
    288,310.73x = 38,340,868,029.81
  5. Step 5: Solve for x
    x = 38,340,868,029.81/288,310.73
  6. Step 6: Final answer
    x = 132,984.54

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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.