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Finding the Fourth Proportional to 279,794.89, 386,116.36 and 152,470.18

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Solution

The fourth proportional to 279,794.89, 386,116.36 and 152,470.18 is: 210,408.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,794.89 : 386,116.36 = 152,470.18 : x
  2. Step 2: Convert to fraction form
    279,794.89/386,116.36 = 152,470.18/x
  3. Step 3: Cross multiply
    279,794.89x = 386,116.36 × 152,470.18
  4. Step 4: Simplify right side
    279,794.89x = 58,871,230,910.14
  5. Step 5: Solve for x
    x = 58,871,230,910.14/279,794.89
  6. Step 6: Final answer
    x = 210,408.53

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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.