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Finding the Fourth Proportional to 288,306.36, 432,500.82 and 88,643.52

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Solution

The fourth proportional to 288,306.36, 432,500.82 and 88,643.52 is: 132,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,306.36 : 432,500.82 = 88,643.52 : x
  2. Step 2: Convert to fraction form
    288,306.36/432,500.82 = 88,643.52/x
  3. Step 3: Cross multiply
    288,306.36x = 432,500.82 × 88,643.52
  4. Step 4: Simplify right side
    288,306.36x = 38,338,395,087.69
  5. Step 5: Solve for x
    x = 38,338,395,087.69/288,306.36
  6. Step 6: Final answer
    x = 132,977.97

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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.