Home / 198,372.18-297,464.47-76,849.64

Finding the Fourth Proportional to 198,372.18, 297,464.47 and 76,849.64

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Solution

The fourth proportional to 198,372.18, 297,464.47 and 76,849.64 is: 115,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,372.18 : 297,464.47 = 76,849.64 : x
  2. Step 2: Convert to fraction form
    198,372.18/297,464.47 = 76,849.64/x
  3. Step 3: Cross multiply
    198,372.18x = 297,464.47 × 76,849.64
  4. Step 4: Simplify right side
    198,372.18x = 22,860,035,560.72
  5. Step 5: Solve for x
    x = 22,860,035,560.72/198,372.18
  6. Step 6: Final answer
    x = 115,238.11

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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.