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Finding the Fourth Proportional to 342,127.80, 472,200.44 and 198,908.46

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Solution

The fourth proportional to 342,127.80, 472,200.44 and 198,908.46 is: 274,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,127.80 : 472,200.44 = 198,908.46 : x
  2. Step 2: Convert to fraction form
    342,127.80/472,200.44 = 198,908.46/x
  3. Step 3: Cross multiply
    342,127.80x = 472,200.44 × 198,908.46
  4. Step 4: Simplify right side
    342,127.80x = 93,924,661,337.18
  5. Step 5: Solve for x
    x = 93,924,661,337.18/342,127.80
  6. Step 6: Final answer
    x = 274,530.92

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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.