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Finding the Fourth Proportional to 340,115.52, 510,154.77 and 103,439.73

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Solution

The fourth proportional to 340,115.52, 510,154.77 and 103,439.73 is: 155,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,115.52 : 510,154.77 = 103,439.73 : x
  2. Step 2: Convert to fraction form
    340,115.52/510,154.77 = 103,439.73/x
  3. Step 3: Cross multiply
    340,115.52x = 510,154.77 × 103,439.73
  4. Step 4: Simplify right side
    340,115.52x = 52,770,273,967.99
  5. Step 5: Solve for x
    x = 52,770,273,967.99/340,115.52
  6. Step 6: Final answer
    x = 155,153.97

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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.