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Finding the Fourth Proportional to 279,367.47, 385,527.11 and 152,043.97

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Solution

The fourth proportional to 279,367.47, 385,527.11 and 152,043.97 is: 209,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,367.47 : 385,527.11 = 152,043.97 : x
  2. Step 2: Convert to fraction form
    279,367.47/385,527.11 = 152,043.97/x
  3. Step 3: Cross multiply
    279,367.47x = 385,527.11 × 152,043.97
  4. Step 4: Simplify right side
    279,367.47x = 58,617,072,347.03
  5. Step 5: Solve for x
    x = 58,617,072,347.03/279,367.47
  6. Step 6: Final answer
    x = 209,820.68

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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.