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Finding the Fourth Proportional to 300,046.20, 450,069.30 and 187,853.10

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Solution

The fourth proportional to 300,046.20, 450,069.30 and 187,853.10 is: 281,779.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,046.20 : 450,069.30 = 187,853.10 : x
  2. Step 2: Convert to fraction form
    300,046.20/450,069.30 = 187,853.10/x
  3. Step 3: Cross multiply
    300,046.20x = 450,069.30 × 187,853.10
  4. Step 4: Simplify right side
    300,046.20x = 84,546,913,219.83
  5. Step 5: Solve for x
    x = 84,546,913,219.83/300,046.20
  6. Step 6: Final answer
    x = 281,779.65

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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.