Home / 259,897.20-389,402.04-141,356.88

Finding the Fourth Proportional to 259,897.20, 389,402.04 and 141,356.88

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Solution

The fourth proportional to 259,897.20, 389,402.04 and 141,356.88 is: 211,793.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,897.20 : 389,402.04 = 141,356.88 : x
  2. Step 2: Convert to fraction form
    259,897.20/389,402.04 = 141,356.88/x
  3. Step 3: Cross multiply
    259,897.20x = 389,402.04 × 141,356.88
  4. Step 4: Simplify right side
    259,897.20x = 55,044,657,440.04
  5. Step 5: Solve for x
    x = 55,044,657,440.04/259,897.20
  6. Step 6: Final answer
    x = 211,793.96

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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.