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Finding the Fourth Proportional to 363,555, 545,335.20 and 126,897.89

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Solution

The fourth proportional to 363,555, 545,335.20 and 126,897.89 is: 190,347.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,555 : 545,335.20 = 126,897.89 : x
  2. Step 2: Convert to fraction form
    363,555/545,335.20 = 126,897.89/x
  3. Step 3: Cross multiply
    363,555x = 545,335.20 × 126,897.89
  4. Step 4: Simplify right side
    363,555x = 69,201,883,496.05
  5. Step 5: Solve for x
    x = 69,201,883,496.05/363,555
  6. Step 6: Final answer
    x = 190,347.77

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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.