Home / 386,121.78-532,532.13-271,778.94

Finding the Fourth Proportional to 386,121.78, 532,532.13 and 271,778.94

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Solution

The fourth proportional to 386,121.78, 532,532.13 and 271,778.94 is: 374,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,121.78 : 532,532.13 = 271,778.94 : x
  2. Step 2: Convert to fraction form
    386,121.78/532,532.13 = 271,778.94/x
  3. Step 3: Cross multiply
    386,121.78x = 532,532.13 × 271,778.94
  4. Step 4: Simplify right side
    386,121.78x = 144,731,017,807.34
  5. Step 5: Solve for x
    x = 144,731,017,807.34/386,121.78
  6. Step 6: Final answer
    x = 374,832.57

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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.