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Finding the Fourth Proportional to 270,089.46, 405,221.67 and 129,829.86

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Solution

The fourth proportional to 270,089.46, 405,221.67 and 129,829.86 is: 194,786.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,089.46 : 405,221.67 = 129,829.86 : x
  2. Step 2: Convert to fraction form
    270,089.46/405,221.67 = 129,829.86/x
  3. Step 3: Cross multiply
    270,089.46x = 405,221.67 × 129,829.86
  4. Step 4: Simplify right side
    270,089.46x = 52,609,872,685.07
  5. Step 5: Solve for x
    x = 52,609,872,685.07/270,089.46
  6. Step 6: Final answer
    x = 194,786.84

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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.