Home / 261,622.20-392,433.30-242,959.80

Finding the Fourth Proportional to 261,622.20, 392,433.30 and 242,959.80

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Solution

The fourth proportional to 261,622.20, 392,433.30 and 242,959.80 is: 364,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,622.20 : 392,433.30 = 242,959.80 : x
  2. Step 2: Convert to fraction form
    261,622.20/392,433.30 = 242,959.80/x
  3. Step 3: Cross multiply
    261,622.20x = 392,433.30 × 242,959.80
  4. Step 4: Simplify right side
    261,622.20x = 95,345,516,081.34
  5. Step 5: Solve for x
    x = 95,345,516,081.34/261,622.20
  6. Step 6: Final answer
    x = 364,439.70

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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.