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Finding the Fourth Proportional to 551,030.56, 826,545.84 and 218,606.56

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Solution

The fourth proportional to 551,030.56, 826,545.84 and 218,606.56 is: 327,909.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,030.56 : 826,545.84 = 218,606.56 : x
  2. Step 2: Convert to fraction form
    551,030.56/826,545.84 = 218,606.56/x
  3. Step 3: Cross multiply
    551,030.56x = 826,545.84 × 218,606.56
  4. Step 4: Simplify right side
    551,030.56x = 180,688,342,764.71
  5. Step 5: Solve for x
    x = 180,688,342,764.71/551,030.56
  6. Step 6: Final answer
    x = 327,909.84

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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.