Home / 280,152.96-386,618.24-171,274.56

Finding the Fourth Proportional to 280,152.96, 386,618.24 and 171,274.56

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Solution

The fourth proportional to 280,152.96, 386,618.24 and 171,274.56 is: 236,363.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,152.96 : 386,618.24 = 171,274.56 : x
  2. Step 2: Convert to fraction form
    280,152.96/386,618.24 = 171,274.56/x
  3. Step 3: Cross multiply
    280,152.96x = 386,618.24 × 171,274.56
  4. Step 4: Simplify right side
    280,152.96x = 66,217,868,943.97
  5. Step 5: Solve for x
    x = 66,217,868,943.97/280,152.96
  6. Step 6: Final answer
    x = 236,363.27

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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.