Home / 288,328.25-397,891.41-159,275.61

Finding the Fourth Proportional to 288,328.25, 397,891.41 and 159,275.61

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Solution

The fourth proportional to 288,328.25, 397,891.41 and 159,275.61 is: 219,799.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,328.25 : 397,891.41 = 159,275.61 : x
  2. Step 2: Convert to fraction form
    288,328.25/397,891.41 = 159,275.61/x
  3. Step 3: Cross multiply
    288,328.25x = 397,891.41 × 159,275.61
  4. Step 4: Simplify right side
    288,328.25x = 63,374,396,444.23
  5. Step 5: Solve for x
    x = 63,374,396,444.23/288,328.25
  6. Step 6: Final answer
    x = 219,799.47

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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.