Home / 453,026.80-679,540.20-137,499.40

Finding the Fourth Proportional to 453,026.80, 679,540.20 and 137,499.40

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Solution

The fourth proportional to 453,026.80, 679,540.20 and 137,499.40 is: 206,249.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,026.80 : 679,540.20 = 137,499.40 : x
  2. Step 2: Convert to fraction form
    453,026.80/679,540.20 = 137,499.40/x
  3. Step 3: Cross multiply
    453,026.80x = 679,540.20 × 137,499.40
  4. Step 4: Simplify right side
    453,026.80x = 93,436,369,775.88
  5. Step 5: Solve for x
    x = 93,436,369,775.88/453,026.80
  6. Step 6: Final answer
    x = 206,249.10

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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.