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Finding the Fourth Proportional to 441,739.08, 662,714.46 and 142,247.88

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Solution

The fourth proportional to 441,739.08, 662,714.46 and 142,247.88 is: 213,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,739.08 : 662,714.46 = 142,247.88 : x
  2. Step 2: Convert to fraction form
    441,739.08/662,714.46 = 142,247.88/x
  3. Step 3: Cross multiply
    441,739.08x = 662,714.46 × 142,247.88
  4. Step 4: Simplify right side
    441,739.08x = 94,269,726,980.34
  5. Step 5: Solve for x
    x = 94,269,726,980.34/441,739.08
  6. Step 6: Final answer
    x = 213,405.90

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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.