Home / 280,363.97-386,844.18-165,584.40

Finding the Fourth Proportional to 280,363.97, 386,844.18 and 165,584.40

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Solution

The fourth proportional to 280,363.97, 386,844.18 and 165,584.40 is: 228,472.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,363.97 : 386,844.18 = 165,584.40 : x
  2. Step 2: Convert to fraction form
    280,363.97/386,844.18 = 165,584.40/x
  3. Step 3: Cross multiply
    280,363.97x = 386,844.18 × 165,584.40
  4. Step 4: Simplify right side
    280,363.97x = 64,055,361,438.79
  5. Step 5: Solve for x
    x = 64,055,361,438.79/280,363.97
  6. Step 6: Final answer
    x = 228,472.16

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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.