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Finding the Fourth Proportional to 259,159.28, 388,737.37 and 67,033.72

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Solution

The fourth proportional to 259,159.28, 388,737.37 and 67,033.72 is: 100,550.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,159.28 : 388,737.37 = 67,033.72 : x
  2. Step 2: Convert to fraction form
    259,159.28/388,737.37 = 67,033.72/x
  3. Step 3: Cross multiply
    259,159.28x = 388,737.37 × 67,033.72
  4. Step 4: Simplify right side
    259,159.28x = 26,058,510,020.12
  5. Step 5: Solve for x
    x = 26,058,510,020.12/259,159.28
  6. Step 6: Final answer
    x = 100,550.17

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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.