Home / 280,275.96-386,789.04-152,959.76

Finding the Fourth Proportional to 280,275.96, 386,789.04 and 152,959.76

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Solution

The fourth proportional to 280,275.96, 386,789.04 and 152,959.76 is: 211,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,275.96 : 386,789.04 = 152,959.76 : x
  2. Step 2: Convert to fraction form
    280,275.96/386,789.04 = 152,959.76/x
  3. Step 3: Cross multiply
    280,275.96x = 386,789.04 × 152,959.76
  4. Step 4: Simplify right side
    280,275.96x = 59,163,158,729.03
  5. Step 5: Solve for x
    x = 59,163,158,729.03/280,275.96
  6. Step 6: Final answer
    x = 211,088.95

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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.