Home / 281,207.28-388,066.06-153,882.88

Finding the Fourth Proportional to 281,207.28, 388,066.06 and 153,882.88

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Solution

The fourth proportional to 281,207.28, 388,066.06 and 153,882.88 is: 212,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,207.28 : 388,066.06 = 153,882.88 : x
  2. Step 2: Convert to fraction form
    281,207.28/388,066.06 = 153,882.88/x
  3. Step 3: Cross multiply
    281,207.28x = 388,066.06 × 153,882.88
  4. Step 4: Simplify right side
    281,207.28x = 59,716,722,943.05
  5. Step 5: Solve for x
    x = 59,716,722,943.05/281,207.28
  6. Step 6: Final answer
    x = 212,358.38

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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.