Home / 372,634.28-513,096.36-280,886.84

Finding the Fourth Proportional to 372,634.28, 513,096.36 and 280,886.84

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Solution

The fourth proportional to 372,634.28, 513,096.36 and 280,886.84 is: 386,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,634.28 : 513,096.36 = 280,886.84 : x
  2. Step 2: Convert to fraction form
    372,634.28/513,096.36 = 280,886.84/x
  3. Step 3: Cross multiply
    372,634.28x = 513,096.36 × 280,886.84
  4. Step 4: Simplify right side
    372,634.28x = 144,122,015,175.90
  5. Step 5: Solve for x
    x = 144,122,015,175.90/372,634.28
  6. Step 6: Final answer
    x = 386,765.32

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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.