Home / 385,176.27-531,542.85-215,410.39

Finding the Fourth Proportional to 385,176.27, 531,542.85 and 215,410.39

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Solution

The fourth proportional to 385,176.27, 531,542.85 and 215,410.39 is: 297,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,176.27 : 531,542.85 = 215,410.39 : x
  2. Step 2: Convert to fraction form
    385,176.27/531,542.85 = 215,410.39/x
  3. Step 3: Cross multiply
    385,176.27x = 531,542.85 × 215,410.39
  4. Step 4: Simplify right side
    385,176.27x = 114,499,853,473.49
  5. Step 5: Solve for x
    x = 114,499,853,473.49/385,176.27
  6. Step 6: Final answer
    x = 297,266.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.