Home / 280,046.23-386,486.76-159,225.43

Finding the Fourth Proportional to 280,046.23, 386,486.76 and 159,225.43

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Solution

The fourth proportional to 280,046.23, 386,486.76 and 159,225.43 is: 219,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,046.23 : 386,486.76 = 159,225.43 : x
  2. Step 2: Convert to fraction form
    280,046.23/386,486.76 = 159,225.43/x
  3. Step 3: Cross multiply
    280,046.23x = 386,486.76 × 159,225.43
  4. Step 4: Simplify right side
    280,046.23x = 61,538,520,550.31
  5. Step 5: Solve for x
    x = 61,538,520,550.31/280,046.23
  6. Step 6: Final answer
    x = 219,744.15

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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.