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Finding the Fourth Proportional to 203,499.10, 305,248.65 and 92,907.10

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Solution

The fourth proportional to 203,499.10, 305,248.65 and 92,907.10 is: 139,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,499.10 : 305,248.65 = 92,907.10 : x
  2. Step 2: Convert to fraction form
    203,499.10/305,248.65 = 92,907.10/x
  3. Step 3: Cross multiply
    203,499.10x = 305,248.65 × 92,907.10
  4. Step 4: Simplify right side
    203,499.10x = 28,359,766,850.42
  5. Step 5: Solve for x
    x = 28,359,766,850.42/203,499.10
  6. Step 6: Final answer
    x = 139,360.65

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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.