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Finding the Fourth Proportional to 279,794.25, 386,116.07 and 152,469.95

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Solution

The fourth proportional to 279,794.25, 386,116.07 and 152,469.95 is: 210,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,794.25 : 386,116.07 = 152,469.95 : x
  2. Step 2: Convert to fraction form
    279,794.25/386,116.07 = 152,469.95/x
  3. Step 3: Cross multiply
    279,794.25x = 386,116.07 × 152,469.95
  4. Step 4: Simplify right side
    279,794.25x = 58,871,095,194.17
  5. Step 5: Solve for x
    x = 58,871,095,194.17/279,794.25
  6. Step 6: Final answer
    x = 210,408.52

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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.