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Finding the Fourth Proportional to 279,864.48, 386,223.48 and 159,026.34

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Solution

The fourth proportional to 279,864.48, 386,223.48 and 159,026.34 is: 219,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,864.48 : 386,223.48 = 159,026.34 : x
  2. Step 2: Convert to fraction form
    279,864.48/386,223.48 = 159,026.34/x
  3. Step 3: Cross multiply
    279,864.48x = 386,223.48 × 159,026.34
  4. Step 4: Simplify right side
    279,864.48x = 61,419,706,446.46
  5. Step 5: Solve for x
    x = 61,419,706,446.46/279,864.48
  6. Step 6: Final answer
    x = 219,462.31

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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.