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Finding the Fourth Proportional to 288,432.72, 432,673.68 and 75,228.96

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Solution

The fourth proportional to 288,432.72, 432,673.68 and 75,228.96 is: 112,849.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,432.72 : 432,673.68 = 75,228.96 : x
  2. Step 2: Convert to fraction form
    288,432.72/432,673.68 = 75,228.96/x
  3. Step 3: Cross multiply
    288,432.72x = 432,673.68 × 75,228.96
  4. Step 4: Simplify right side
    288,432.72x = 32,549,590,965.77
  5. Step 5: Solve for x
    x = 32,549,590,965.77/288,432.72
  6. Step 6: Final answer
    x = 112,849.86

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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.