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Finding the Fourth Proportional to 340,082.55, 510,143.03 and 103,432.95

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Solution

The fourth proportional to 340,082.55, 510,143.03 and 103,432.95 is: 155,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,082.55 : 510,143.03 = 103,432.95 : x
  2. Step 2: Convert to fraction form
    340,082.55/510,143.03 = 103,432.95/x
  3. Step 3: Cross multiply
    340,082.55x = 510,143.03 × 103,432.95
  4. Step 4: Simplify right side
    340,082.55x = 52,765,597,997.67
  5. Step 5: Solve for x
    x = 52,765,597,997.67/340,082.55
  6. Step 6: Final answer
    x = 155,155.26

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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.