Home / 286,724.44-395,680.19-159,400.04

Finding the Fourth Proportional to 286,724.44, 395,680.19 and 159,400.04

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Solution

The fourth proportional to 286,724.44, 395,680.19 and 159,400.04 is: 219,972.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,724.44 : 395,680.19 = 159,400.04 : x
  2. Step 2: Convert to fraction form
    286,724.44/395,680.19 = 159,400.04/x
  3. Step 3: Cross multiply
    286,724.44x = 395,680.19 × 159,400.04
  4. Step 4: Simplify right side
    286,724.44x = 63,071,435,337.81
  5. Step 5: Solve for x
    x = 63,071,435,337.81/286,724.44
  6. Step 6: Final answer
    x = 219,972.30

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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.