Home / 386,942.85-580,421.12-134,232.27

Finding the Fourth Proportional to 386,942.85, 580,421.12 and 134,232.27

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Solution

The fourth proportional to 386,942.85, 580,421.12 and 134,232.27 is: 201,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,942.85 : 580,421.12 = 134,232.27 : x
  2. Step 2: Convert to fraction form
    386,942.85/580,421.12 = 134,232.27/x
  3. Step 3: Cross multiply
    386,942.85x = 580,421.12 × 134,232.27
  4. Step 4: Simplify right side
    386,942.85x = 77,911,243,822.38
  5. Step 5: Solve for x
    x = 77,911,243,822.38/386,942.85
  6. Step 6: Final answer
    x = 201,350.78

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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.