Home / 280,167.47-386,623.46-152,843.03

Finding the Fourth Proportional to 280,167.47, 386,623.46 and 152,843.03

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Solution

The fourth proportional to 280,167.47, 386,623.46 and 152,843.03 is: 210,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,167.47 : 386,623.46 = 152,843.03 : x
  2. Step 2: Convert to fraction form
    280,167.47/386,623.46 = 152,843.03/x
  3. Step 3: Cross multiply
    280,167.47x = 386,623.46 × 152,843.03
  4. Step 4: Simplify right side
    280,167.47x = 59,092,700,331.27
  5. Step 5: Solve for x
    x = 59,092,700,331.27/280,167.47
  6. Step 6: Final answer
    x = 210,919.21

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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.