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Finding the Fourth Proportional to 442,814.40, 664,474.32 and 240,560.64

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Solution

The fourth proportional to 442,814.40, 664,474.32 and 240,560.64 is: 360,978.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,814.40 : 664,474.32 = 240,560.64 : x
  2. Step 2: Convert to fraction form
    442,814.40/664,474.32 = 240,560.64/x
  3. Step 3: Cross multiply
    442,814.40x = 664,474.32 × 240,560.64
  4. Step 4: Simplify right side
    442,814.40x = 159,846,367,682.77
  5. Step 5: Solve for x
    x = 159,846,367,682.77/442,814.40
  6. Step 6: Final answer
    x = 360,978.25

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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.