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Finding the Fourth Proportional to 169,969.70, 255,064.71 and 156,983.78

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Solution

The fourth proportional to 169,969.70, 255,064.71 and 156,983.78 is: 235,577.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,969.70 : 255,064.71 = 156,983.78 : x
  2. Step 2: Convert to fraction form
    169,969.70/255,064.71 = 156,983.78/x
  3. Step 3: Cross multiply
    169,969.70x = 255,064.71 × 156,983.78
  4. Step 4: Simplify right side
    169,969.70x = 40,041,022,320.40
  5. Step 5: Solve for x
    x = 40,041,022,320.40/169,969.70
  6. Step 6: Final answer
    x = 235,577.41

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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.