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Finding the Fourth Proportional to 286,032.38, 394,724.75 and 158,708.88

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Solution

The fourth proportional to 286,032.38, 394,724.75 and 158,708.88 is: 219,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,032.38 : 394,724.75 = 158,708.88 : x
  2. Step 2: Convert to fraction form
    286,032.38/394,724.75 = 158,708.88/x
  3. Step 3: Cross multiply
    286,032.38x = 394,724.75 × 158,708.88
  4. Step 4: Simplify right side
    286,032.38x = 62,646,322,980.78
  5. Step 5: Solve for x
    x = 62,646,322,980.78/286,032.38
  6. Step 6: Final answer
    x = 219,018.29

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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.