Home / 279,798.90-386,121.86-152,474.18

Finding the Fourth Proportional to 279,798.90, 386,121.86 and 152,474.18

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Solution

The fourth proportional to 279,798.90, 386,121.86 and 152,474.18 is: 210,414.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,798.90 : 386,121.86 = 152,474.18 : x
  2. Step 2: Convert to fraction form
    279,798.90/386,121.86 = 152,474.18/x
  3. Step 3: Cross multiply
    279,798.90x = 386,121.86 × 152,474.18
  4. Step 4: Simplify right side
    279,798.90x = 58,873,613,983.57
  5. Step 5: Solve for x
    x = 58,873,613,983.57/279,798.90
  6. Step 6: Final answer
    x = 210,414.03

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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.