Home / 280,382.40-386,922.66-159,521.09

Finding the Fourth Proportional to 280,382.40, 386,922.66 and 159,521.09

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Solution

The fourth proportional to 280,382.40, 386,922.66 and 159,521.09 is: 220,136.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,382.40 : 386,922.66 = 159,521.09 : x
  2. Step 2: Convert to fraction form
    280,382.40/386,922.66 = 159,521.09/x
  3. Step 3: Cross multiply
    280,382.40x = 386,922.66 × 159,521.09
  4. Step 4: Simplify right side
    280,382.40x = 61,722,322,534.29
  5. Step 5: Solve for x
    x = 61,722,322,534.29/280,382.40
  6. Step 6: Final answer
    x = 220,136.22

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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.