Home / 386,252.50-532,911.09-243,155.38

Finding the Fourth Proportional to 386,252.50, 532,911.09 and 243,155.38

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Solution

The fourth proportional to 386,252.50, 532,911.09 and 243,155.38 is: 335,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,252.50 : 532,911.09 = 243,155.38 : x
  2. Step 2: Convert to fraction form
    386,252.50/532,911.09 = 243,155.38/x
  3. Step 3: Cross multiply
    386,252.50x = 532,911.09 × 243,155.38
  4. Step 4: Simplify right side
    386,252.50x = 129,580,198,595.16
  5. Step 5: Solve for x
    x = 129,580,198,595.16/386,252.50
  6. Step 6: Final answer
    x = 335,480.54

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1.5x scale

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.