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Finding the Fourth Proportional to 279,794.87, 386,116.94 and 152,470.43

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Solution

The fourth proportional to 279,794.87, 386,116.94 and 152,470.43 is: 210,409.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,794.87 : 386,116.94 = 152,470.43 : x
  2. Step 2: Convert to fraction form
    279,794.87/386,116.94 = 152,470.43/x
  3. Step 3: Cross multiply
    279,794.87x = 386,116.94 × 152,470.43
  4. Step 4: Simplify right side
    279,794.87x = 58,871,415,109.73
  5. Step 5: Solve for x
    x = 58,871,415,109.73/279,794.87
  6. Step 6: Final answer
    x = 210,409.20

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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.