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Finding the Fourth Proportional to 279,846.38, 386,188.01 and 152,522.28

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Solution

The fourth proportional to 279,846.38, 386,188.01 and 152,522.28 is: 210,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,846.38 : 386,188.01 = 152,522.28 : x
  2. Step 2: Convert to fraction form
    279,846.38/386,188.01 = 152,522.28/x
  3. Step 3: Cross multiply
    279,846.38x = 386,188.01 × 152,522.28
  4. Step 4: Simplify right side
    279,846.38x = 58,902,275,031.25
  5. Step 5: Solve for x
    x = 58,902,275,031.25/279,846.38
  6. Step 6: Final answer
    x = 210,480.75

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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.