Home / 387,167.20-580,824.32-134,437.92

Finding the Fourth Proportional to 387,167.20, 580,824.32 and 134,437.92

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Solution

The fourth proportional to 387,167.20, 580,824.32 and 134,437.92 is: 201,682.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,167.20 : 580,824.32 = 134,437.92 : x
  2. Step 2: Convert to fraction form
    387,167.20/580,824.32 = 134,437.92/x
  3. Step 3: Cross multiply
    387,167.20x = 580,824.32 × 134,437.92
  4. Step 4: Simplify right side
    387,167.20x = 78,084,813,466.21
  5. Step 5: Solve for x
    x = 78,084,813,466.21/387,167.20
  6. Step 6: Final answer
    x = 201,682.41

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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.