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Finding the Fourth Proportional to 542,572.06, 813,960.14 and 218,384.94

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Solution

The fourth proportional to 542,572.06, 813,960.14 and 218,384.94 is: 327,618.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,572.06 : 813,960.14 = 218,384.94 : x
  2. Step 2: Convert to fraction form
    542,572.06/813,960.14 = 218,384.94/x
  3. Step 3: Cross multiply
    542,572.06x = 813,960.14 × 218,384.94
  4. Step 4: Simplify right side
    542,572.06x = 177,756,636,336.29
  5. Step 5: Solve for x
    x = 177,756,636,336.29/542,572.06
  6. Step 6: Final answer
    x = 327,618.49

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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.