Home / 207,990.42-312,052.41-144,217.50

Finding the Fourth Proportional to 207,990.42, 312,052.41 and 144,217.50

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Solution

The fourth proportional to 207,990.42, 312,052.41 and 144,217.50 is: 216,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,990.42 : 312,052.41 = 144,217.50 : x
  2. Step 2: Convert to fraction form
    207,990.42/312,052.41 = 144,217.50/x
  3. Step 3: Cross multiply
    207,990.42x = 312,052.41 × 144,217.50
  4. Step 4: Simplify right side
    207,990.42x = 45,003,418,439.18
  5. Step 5: Solve for x
    x = 45,003,418,439.18/207,990.42
  6. Step 6: Final answer
    x = 216,372.55

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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.