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Finding the Fourth Proportional to 144,998.40, 217,411.20 and 75,014.40

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Solution

The fourth proportional to 144,998.40, 217,411.20 and 75,014.40 is: 112,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,998.40 : 217,411.20 = 75,014.40 : x
  2. Step 2: Convert to fraction form
    144,998.40/217,411.20 = 75,014.40/x
  3. Step 3: Cross multiply
    144,998.40x = 217,411.20 × 75,014.40
  4. Step 4: Simplify right side
    144,998.40x = 16,308,970,721.28
  5. Step 5: Solve for x
    x = 16,308,970,721.28/144,998.40
  6. Step 6: Final answer
    x = 112,476.90

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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.