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Finding the Fourth Proportional to 363,490.20, 545,259.60 and 123,600.60

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Solution

The fourth proportional to 363,490.20, 545,259.60 and 123,600.60 is: 185,409.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,490.20 : 545,259.60 = 123,600.60 : x
  2. Step 2: Convert to fraction form
    363,490.20/545,259.60 = 123,600.60/x
  3. Step 3: Cross multiply
    363,490.20x = 545,259.60 × 123,600.60
  4. Step 4: Simplify right side
    363,490.20x = 67,394,413,715.76
  5. Step 5: Solve for x
    x = 67,394,413,715.76/363,490.20
  6. Step 6: Final answer
    x = 185,409.16

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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.