Home / 281,149.28-387,982.56-153,823.04

Finding the Fourth Proportional to 281,149.28, 387,982.56 and 153,823.04

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Solution

The fourth proportional to 281,149.28, 387,982.56 and 153,823.04 is: 212,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,149.28 : 387,982.56 = 153,823.04 : x
  2. Step 2: Convert to fraction form
    281,149.28/387,982.56 = 153,823.04/x
  3. Step 3: Cross multiply
    281,149.28x = 387,982.56 × 153,823.04
  4. Step 4: Simplify right side
    281,149.28x = 59,680,656,846.18
  5. Step 5: Solve for x
    x = 59,680,656,846.18/281,149.28
  6. Step 6: Final answer
    x = 212,273.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.