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Finding the Fourth Proportional to 440,833.86, 661,231.35 and 141,329.48

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Solution

The fourth proportional to 440,833.86, 661,231.35 and 141,329.48 is: 211,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,833.86 : 661,231.35 = 141,329.48 : x
  2. Step 2: Convert to fraction form
    440,833.86/661,231.35 = 141,329.48/x
  3. Step 3: Cross multiply
    440,833.86x = 661,231.35 × 141,329.48
  4. Step 4: Simplify right side
    440,833.86x = 93,451,479,549.04
  5. Step 5: Solve for x
    x = 93,451,479,549.04/440,833.86
  6. Step 6: Final answer
    x = 211,987.98

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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.