Home / 279,864.32-386,212.20-152,539.52

Finding the Fourth Proportional to 279,864.32, 386,212.20 and 152,539.52

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Solution

The fourth proportional to 279,864.32, 386,212.20 and 152,539.52 is: 210,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,864.32 : 386,212.20 = 152,539.52 : x
  2. Step 2: Convert to fraction form
    279,864.32/386,212.20 = 152,539.52/x
  3. Step 3: Cross multiply
    279,864.32x = 386,212.20 × 152,539.52
  4. Step 4: Simplify right side
    279,864.32x = 58,912,623,606.14
  5. Step 5: Solve for x
    x = 58,912,623,606.14/279,864.32
  6. Step 6: Final answer
    x = 210,504.23

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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.