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Finding the Fourth Proportional to 342,154.80, 513,232.20 and 92,836.80

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Solution

The fourth proportional to 342,154.80, 513,232.20 and 92,836.80 is: 139,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,154.80 : 513,232.20 = 92,836.80 : x
  2. Step 2: Convert to fraction form
    342,154.80/513,232.20 = 92,836.80/x
  3. Step 3: Cross multiply
    342,154.80x = 513,232.20 × 92,836.80
  4. Step 4: Simplify right side
    342,154.80x = 47,646,835,104.96
  5. Step 5: Solve for x
    x = 47,646,835,104.96/342,154.80
  6. Step 6: Final answer
    x = 139,255.20

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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.