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Finding the Fourth Proportional to 144,867.60, 217,009.80 and 100,544.40

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Solution

The fourth proportional to 144,867.60, 217,009.80 and 100,544.40 is: 150,614.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,867.60 : 217,009.80 = 100,544.40 : x
  2. Step 2: Convert to fraction form
    144,867.60/217,009.80 = 100,544.40/x
  3. Step 3: Cross multiply
    144,867.60x = 217,009.80 × 100,544.40
  4. Step 4: Simplify right side
    144,867.60x = 21,819,120,135.12
  5. Step 5: Solve for x
    x = 21,819,120,135.12/144,867.60
  6. Step 6: Final answer
    x = 150,614.22

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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.