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Finding the Fourth Proportional to 363,552.12, 545,555.52 and 138,931.74

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Solution

The fourth proportional to 363,552.12, 545,555.52 and 138,931.74 is: 208,484.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,552.12 : 545,555.52 = 138,931.74 : x
  2. Step 2: Convert to fraction form
    363,552.12/545,555.52 = 138,931.74/x
  3. Step 3: Cross multiply
    363,552.12x = 545,555.52 × 138,931.74
  4. Step 4: Simplify right side
    363,552.12x = 75,794,977,660.20
  5. Step 5: Solve for x
    x = 75,794,977,660.20/363,552.12
  6. Step 6: Final answer
    x = 208,484.49

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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.