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Finding the Fourth Proportional to 340,031.68, 510,105.84 and 103,397.92

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Solution

The fourth proportional to 340,031.68, 510,105.84 and 103,397.92 is: 155,114.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,031.68 : 510,105.84 = 103,397.92 : x
  2. Step 2: Convert to fraction form
    340,031.68/510,105.84 = 103,397.92/x
  3. Step 3: Cross multiply
    340,031.68x = 510,105.84 × 103,397.92
  4. Step 4: Simplify right side
    340,031.68x = 52,743,882,835.85
  5. Step 5: Solve for x
    x = 52,743,882,835.85/340,031.68
  6. Step 6: Final answer
    x = 155,114.61

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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.