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Finding the Fourth Proportional to 240,363.69, 360,628.80 and 90,646.92

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Solution

The fourth proportional to 240,363.69, 360,628.80 and 90,646.92 is: 136,001.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,363.69 : 360,628.80 = 90,646.92 : x
  2. Step 2: Convert to fraction form
    240,363.69/360,628.80 = 90,646.92/x
  3. Step 3: Cross multiply
    240,363.69x = 360,628.80 × 90,646.92
  4. Step 4: Simplify right side
    240,363.69x = 32,689,889,983.30
  5. Step 5: Solve for x
    x = 32,689,889,983.30/240,363.69
  6. Step 6: Final answer
    x = 136,001.78

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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.