Home / 281,059.28-387,853.56-153,732.12

Finding the Fourth Proportional to 281,059.28, 387,853.56 and 153,732.12

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Solution

The fourth proportional to 281,059.28, 387,853.56 and 153,732.12 is: 212,145.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,059.28 : 387,853.56 = 153,732.12 : x
  2. Step 2: Convert to fraction form
    281,059.28/387,853.56 = 153,732.12/x
  3. Step 3: Cross multiply
    281,059.28x = 387,853.56 × 153,732.12
  4. Step 4: Simplify right side
    281,059.28x = 59,625,550,028.35
  5. Step 5: Solve for x
    x = 59,625,550,028.35/281,059.28
  6. Step 6: Final answer
    x = 212,145.82

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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.