Home / 280,177.71-386,643.94-152,853.30

Finding the Fourth Proportional to 280,177.71, 386,643.94 and 152,853.30

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Solution

The fourth proportional to 280,177.71, 386,643.94 and 152,853.30 is: 210,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,177.71 : 386,643.94 = 152,853.30 : x
  2. Step 2: Convert to fraction form
    280,177.71/386,643.94 = 152,853.30/x
  3. Step 3: Cross multiply
    280,177.71x = 386,643.94 × 152,853.30
  4. Step 4: Simplify right side
    280,177.71x = 59,099,801,873.04
  5. Step 5: Solve for x
    x = 59,099,801,873.04/280,177.71
  6. Step 6: Final answer
    x = 210,936.85

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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.