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Finding the Fourth Proportional to 165,011.31, 247,477.31 and 76,179.49

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Solution

The fourth proportional to 165,011.31, 247,477.31 and 76,179.49 is: 114,250.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,011.31 : 247,477.31 = 76,179.49 : x
  2. Step 2: Convert to fraction form
    165,011.31/247,477.31 = 76,179.49/x
  3. Step 3: Cross multiply
    165,011.31x = 247,477.31 × 76,179.49
  4. Step 4: Simplify right side
    165,011.31x = 18,852,694,548.45
  5. Step 5: Solve for x
    x = 18,852,694,548.45/165,011.31
  6. Step 6: Final answer
    x = 114,250.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.