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Finding the Fourth Proportional to 243,584.70, 365,085.45 and 125,195.10

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Solution

The fourth proportional to 243,584.70, 365,085.45 and 125,195.10 is: 187,642.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,584.70 : 365,085.45 = 125,195.10 : x
  2. Step 2: Convert to fraction form
    243,584.70/365,085.45 = 125,195.10/x
  3. Step 3: Cross multiply
    243,584.70x = 365,085.45 × 125,195.10
  4. Step 4: Simplify right side
    243,584.70x = 45,706,909,421.30
  5. Step 5: Solve for x
    x = 45,706,909,421.30/243,584.70
  6. Step 6: Final answer
    x = 187,642.78

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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.