Home / 281,122.20-421,755.30-162,581.40

Finding the Fourth Proportional to 281,122.20, 421,755.30 and 162,581.40

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Solution

The fourth proportional to 281,122.20, 421,755.30 and 162,581.40 is: 243,913.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,122.20 : 421,755.30 = 162,581.40 : x
  2. Step 2: Convert to fraction form
    281,122.20/421,755.30 = 162,581.40/x
  3. Step 3: Cross multiply
    281,122.20x = 421,755.30 × 162,581.40
  4. Step 4: Simplify right side
    281,122.20x = 68,569,567,131.42
  5. Step 5: Solve for x
    x = 68,569,567,131.42/281,122.20
  6. Step 6: Final answer
    x = 243,913.74

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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.