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Finding the Fourth Proportional to 551,038.56, 826,557.84 and 218,614.56

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Solution

The fourth proportional to 551,038.56, 826,557.84 and 218,614.56 is: 327,921.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,038.56 : 826,557.84 = 218,614.56 : x
  2. Step 2: Convert to fraction form
    551,038.56/826,557.84 = 218,614.56/x
  3. Step 3: Cross multiply
    551,038.56x = 826,557.84 × 218,614.56
  4. Step 4: Simplify right side
    551,038.56x = 180,697,578,506.15
  5. Step 5: Solve for x
    x = 180,697,578,506.15/551,038.56
  6. Step 6: Final answer
    x = 327,921.84

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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.