Home / 385,177.27-531,544.23-215,411.39

Finding the Fourth Proportional to 385,177.27, 531,544.23 and 215,411.39

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Solution

The fourth proportional to 385,177.27, 531,544.23 and 215,411.39 is: 297,267.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,177.27 : 531,544.23 = 215,411.39 : x
  2. Step 2: Convert to fraction form
    385,177.27/531,544.23 = 215,411.39/x
  3. Step 3: Cross multiply
    385,177.27x = 531,544.23 × 215,411.39
  4. Step 4: Simplify right side
    385,177.27x = 114,500,681,430.78
  5. Step 5: Solve for x
    x = 114,500,681,430.78/385,177.27
  6. Step 6: Final answer
    x = 297,267.49

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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.