Home / 280,261.17-386,772.03-159,423.75

Finding the Fourth Proportional to 280,261.17, 386,772.03 and 159,423.75

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Solution

The fourth proportional to 280,261.17, 386,772.03 and 159,423.75 is: 220,011.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,261.17 : 386,772.03 = 159,423.75 : x
  2. Step 2: Convert to fraction form
    280,261.17/386,772.03 = 159,423.75/x
  3. Step 3: Cross multiply
    280,261.17x = 386,772.03 × 159,423.75
  4. Step 4: Simplify right side
    280,261.17x = 61,660,647,417.71
  5. Step 5: Solve for x
    x = 61,660,647,417.71/280,261.17
  6. Step 6: Final answer
    x = 220,011.38

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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.