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Finding the Fourth Proportional to 280,687.55, 387,520.43 and 182,664.18

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Solution

The fourth proportional to 280,687.55, 387,520.43 and 182,664.18 is: 252,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,687.55 : 387,520.43 = 182,664.18 : x
  2. Step 2: Convert to fraction form
    280,687.55/387,520.43 = 182,664.18/x
  3. Step 3: Cross multiply
    280,687.55x = 387,520.43 × 182,664.18
  4. Step 4: Simplify right side
    280,687.55x = 70,786,100,665.88
  5. Step 5: Solve for x
    x = 70,786,100,665.88/280,687.55
  6. Step 6: Final answer
    x = 252,188.25

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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.