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Finding the Fourth Proportional to 288,001.30, 432,001.95 and 247,911.70

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Solution

The fourth proportional to 288,001.30, 432,001.95 and 247,911.70 is: 371,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,001.30 : 432,001.95 = 247,911.70 : x
  2. Step 2: Convert to fraction form
    288,001.30/432,001.95 = 247,911.70/x
  3. Step 3: Cross multiply
    288,001.30x = 432,001.95 × 247,911.70
  4. Step 4: Simplify right side
    288,001.30x = 107,098,337,827.82
  5. Step 5: Solve for x
    x = 107,098,337,827.82/288,001.30
  6. Step 6: Final answer
    x = 371,867.55

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1.5x scale

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.