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Finding the Fourth Proportional to 199,812.40, 299,718.60 and 144,043.90

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Solution

The fourth proportional to 199,812.40, 299,718.60 and 144,043.90 is: 216,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,812.40 : 299,718.60 = 144,043.90 : x
  2. Step 2: Convert to fraction form
    199,812.40/299,718.60 = 144,043.90/x
  3. Step 3: Cross multiply
    199,812.40x = 299,718.60 × 144,043.90
  4. Step 4: Simplify right side
    199,812.40x = 43,172,636,046.54
  5. Step 5: Solve for x
    x = 43,172,636,046.54/199,812.40
  6. Step 6: Final answer
    x = 216,065.85

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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.