Home / 280,592.22-420,950.52-80,897.02

Finding the Fourth Proportional to 280,592.22, 420,950.52 and 80,897.02

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Solution

The fourth proportional to 280,592.22, 420,950.52 and 80,897.02 is: 121,363.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,592.22 : 420,950.52 = 80,897.02 : x
  2. Step 2: Convert to fraction form
    280,592.22/420,950.52 = 80,897.02/x
  3. Step 3: Cross multiply
    280,592.22x = 420,950.52 × 80,897.02
  4. Step 4: Simplify right side
    280,592.22x = 34,053,642,230.97
  5. Step 5: Solve for x
    x = 34,053,642,230.97/280,592.22
  6. Step 6: Final answer
    x = 121,363.46

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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.