Home / 281,115.56-387,948.59-153,791.16

Finding the Fourth Proportional to 281,115.56, 387,948.59 and 153,791.16

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Solution

The fourth proportional to 281,115.56, 387,948.59 and 153,791.16 is: 212,236.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,115.56 : 387,948.59 = 153,791.16 : x
  2. Step 2: Convert to fraction form
    281,115.56/387,948.59 = 153,791.16/x
  3. Step 3: Cross multiply
    281,115.56x = 387,948.59 × 153,791.16
  4. Step 4: Simplify right side
    281,115.56x = 59,663,062,029.42
  5. Step 5: Solve for x
    x = 59,663,062,029.42/281,115.56
  6. Step 6: Final answer
    x = 212,236.78

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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.