Home / 453,438.40-680,183.20-137,905.60

Finding the Fourth Proportional to 453,438.40, 680,183.20 and 137,905.60

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Solution

The fourth proportional to 453,438.40, 680,183.20 and 137,905.60 is: 206,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,438.40 : 680,183.20 = 137,905.60 : x
  2. Step 2: Convert to fraction form
    453,438.40/680,183.20 = 137,905.60/x
  3. Step 3: Cross multiply
    453,438.40x = 680,183.20 × 137,905.60
  4. Step 4: Simplify right side
    453,438.40x = 93,801,072,305.92
  5. Step 5: Solve for x
    x = 93,801,072,305.92/453,438.40
  6. Step 6: Final answer
    x = 206,866.19

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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.