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Finding the Fourth Proportional to 300,038.20, 449,985.30 and 173,404.60

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Solution

The fourth proportional to 300,038.20, 449,985.30 and 173,404.60 is: 260,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,038.20 : 449,985.30 = 173,404.60 : x
  2. Step 2: Convert to fraction form
    300,038.20/449,985.30 = 173,404.60/x
  3. Step 3: Cross multiply
    300,038.20x = 449,985.30 × 173,404.60
  4. Step 4: Simplify right side
    300,038.20x = 78,029,520,952.38
  5. Step 5: Solve for x
    x = 78,029,520,952.38/300,038.20
  6. Step 6: Final answer
    x = 260,065.29

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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.