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Finding the Fourth Proportional to 399,918.18, 600,114.10 and 147,375.67

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Solution

The fourth proportional to 399,918.18, 600,114.10 and 147,375.67 is: 221,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,918.18 : 600,114.10 = 147,375.67 : x
  2. Step 2: Convert to fraction form
    399,918.18/600,114.10 = 147,375.67/x
  3. Step 3: Cross multiply
    399,918.18x = 600,114.10 × 147,375.67
  4. Step 4: Simplify right side
    399,918.18x = 88,442,217,563.95
  5. Step 5: Solve for x
    x = 88,442,217,563.95/399,918.18
  6. Step 6: Final answer
    x = 221,150.78

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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.