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Finding the Fourth Proportional to 342,080.40, 513,072.28 and 117,436.88

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Solution

The fourth proportional to 342,080.40, 513,072.28 and 117,436.88 is: 176,138.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,080.40 : 513,072.28 = 117,436.88 : x
  2. Step 2: Convert to fraction form
    342,080.40/513,072.28 = 117,436.88/x
  3. Step 3: Cross multiply
    342,080.40x = 513,072.28 × 117,436.88
  4. Step 4: Simplify right side
    342,080.40x = 60,253,607,777.69
  5. Step 5: Solve for x
    x = 60,253,607,777.69/342,080.40
  6. Step 6: Final answer
    x = 176,138.73

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1.5x scale

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.