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Finding the Fourth Proportional to 484,515.19, 726,717.33 and 129,556.89

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Solution

The fourth proportional to 484,515.19, 726,717.33 and 129,556.89 is: 194,320.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,515.19 : 726,717.33 = 129,556.89 : x
  2. Step 2: Convert to fraction form
    484,515.19/726,717.33 = 129,556.89/x
  3. Step 3: Cross multiply
    484,515.19x = 726,717.33 × 129,556.89
  4. Step 4: Simplify right side
    484,515.19x = 94,151,237,183.90
  5. Step 5: Solve for x
    x = 94,151,237,183.90/484,515.19
  6. Step 6: Final answer
    x = 194,320.51

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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.