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Finding the Fourth Proportional to 144,380.70, 216,601.95 and 43,186.69

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Solution

The fourth proportional to 144,380.70, 216,601.95 and 43,186.69 is: 64,789.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,380.70 : 216,601.95 = 43,186.69 : x
  2. Step 2: Convert to fraction form
    144,380.70/216,601.95 = 43,186.69/x
  3. Step 3: Cross multiply
    144,380.70x = 216,601.95 × 43,186.69
  4. Step 4: Simplify right side
    144,380.70x = 9,354,321,268.05
  5. Step 5: Solve for x
    x = 9,354,321,268.05/144,380.70
  6. Step 6: Final answer
    x = 64,789.28

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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.