Home / 281,084.20-421,698.30-162,543.40

Finding the Fourth Proportional to 281,084.20, 421,698.30 and 162,543.40

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Solution

The fourth proportional to 281,084.20, 421,698.30 and 162,543.40 is: 243,856.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,084.20 : 421,698.30 = 162,543.40 : x
  2. Step 2: Convert to fraction form
    281,084.20/421,698.30 = 162,543.40/x
  3. Step 3: Cross multiply
    281,084.20x = 421,698.30 × 162,543.40
  4. Step 4: Simplify right side
    281,084.20x = 68,544,275,456.22
  5. Step 5: Solve for x
    x = 68,544,275,456.22/281,084.20
  6. Step 6: Final answer
    x = 243,856.74

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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.