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Finding the Fourth Proportional to 443,565.40, 664,473.30 and 265,543.60

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Solution

The fourth proportional to 443,565.40, 664,473.30 and 265,543.60 is: 397,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,565.40 : 664,473.30 = 265,543.60 : x
  2. Step 2: Convert to fraction form
    443,565.40/664,473.30 = 265,543.60/x
  3. Step 3: Cross multiply
    443,565.40x = 664,473.30 × 265,543.60
  4. Step 4: Simplify right side
    443,565.40x = 176,446,632,185.88
  5. Step 5: Solve for x
    x = 176,446,632,185.88/443,565.40
  6. Step 6: Final answer
    x = 397,791.69

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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.