Home / 279,839.34-386,167.02-152,512.20

Finding the Fourth Proportional to 279,839.34, 386,167.02 and 152,512.20

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Solution

The fourth proportional to 279,839.34, 386,167.02 and 152,512.20 is: 210,460.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,839.34 : 386,167.02 = 152,512.20 : x
  2. Step 2: Convert to fraction form
    279,839.34/386,167.02 = 152,512.20/x
  3. Step 3: Cross multiply
    279,839.34x = 386,167.02 × 152,512.20
  4. Step 4: Simplify right side
    279,839.34x = 58,895,181,787.64
  5. Step 5: Solve for x
    x = 58,895,181,787.64/279,839.34
  6. Step 6: Final answer
    x = 210,460.69

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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.