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Finding the Fourth Proportional to 499,442.60, 749,163.90 and 144,468.20

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Solution

The fourth proportional to 499,442.60, 749,163.90 and 144,468.20 is: 216,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,442.60 : 749,163.90 = 144,468.20 : x
  2. Step 2: Convert to fraction form
    499,442.60/749,163.90 = 144,468.20/x
  3. Step 3: Cross multiply
    499,442.60x = 749,163.90 × 144,468.20
  4. Step 4: Simplify right side
    499,442.60x = 108,230,360,137.98
  5. Step 5: Solve for x
    x = 108,230,360,137.98/499,442.60
  6. Step 6: Final answer
    x = 216,702.30

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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.