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Finding the Fourth Proportional to 340,072.60, 510,108.90 and 103,414.90

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Solution

The fourth proportional to 340,072.60, 510,108.90 and 103,414.90 is: 155,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,072.60 : 510,108.90 = 103,414.90 : x
  2. Step 2: Convert to fraction form
    340,072.60/510,108.90 = 103,414.90/x
  3. Step 3: Cross multiply
    340,072.60x = 510,108.90 × 103,414.90
  4. Step 4: Simplify right side
    340,072.60x = 52,752,860,882.61
  5. Step 5: Solve for x
    x = 52,752,860,882.61/340,072.60
  6. Step 6: Final answer
    x = 155,122.35

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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.