Home / 280,373.91-386,911.04-159,512.60

Finding the Fourth Proportional to 280,373.91, 386,911.04 and 159,512.60

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Solution

The fourth proportional to 280,373.91, 386,911.04 and 159,512.60 is: 220,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,373.91 : 386,911.04 = 159,512.60 : x
  2. Step 2: Convert to fraction form
    280,373.91/386,911.04 = 159,512.60/x
  3. Step 3: Cross multiply
    280,373.91x = 386,911.04 × 159,512.60
  4. Step 4: Simplify right side
    280,373.91x = 61,717,185,959.10
  5. Step 5: Solve for x
    x = 61,717,185,959.10/280,373.91
  6. Step 6: Final answer
    x = 220,124.57

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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.