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Finding the Fourth Proportional to 340,371.80, 510,503.02 and 103,659.43

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Solution

The fourth proportional to 340,371.80, 510,503.02 and 103,659.43 is: 155,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,371.80 : 510,503.02 = 103,659.43 : x
  2. Step 2: Convert to fraction form
    340,371.80/510,503.02 = 103,659.43/x
  3. Step 3: Cross multiply
    340,371.80x = 510,503.02 × 103,659.43
  4. Step 4: Simplify right side
    340,371.80x = 52,918,452,066.48
  5. Step 5: Solve for x
    x = 52,918,452,066.48/340,371.80
  6. Step 6: Final answer
    x = 155,472.49

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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.