Home / 198,360.57-297,431.51-103,353.65

Finding the Fourth Proportional to 198,360.57, 297,431.51 and 103,353.65

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Solution

The fourth proportional to 198,360.57, 297,431.51 and 103,353.65 is: 154,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,360.57 : 297,431.51 = 103,353.65 : x
  2. Step 2: Convert to fraction form
    198,360.57/297,431.51 = 103,353.65/x
  3. Step 3: Cross multiply
    198,360.57x = 297,431.51 × 103,353.65
  4. Step 4: Simplify right side
    198,360.57x = 30,740,630,179.59
  5. Step 5: Solve for x
    x = 30,740,630,179.59/198,360.57
  6. Step 6: Final answer
    x = 154,973.49

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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.