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Finding the Fourth Proportional to 251,929.80, 377,894.70 and 83,404.80

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Solution

The fourth proportional to 251,929.80, 377,894.70 and 83,404.80 is: 125,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,929.80 : 377,894.70 = 83,404.80 : x
  2. Step 2: Convert to fraction form
    251,929.80/377,894.70 = 83,404.80/x
  3. Step 3: Cross multiply
    251,929.80x = 377,894.70 × 83,404.80
  4. Step 4: Simplify right side
    251,929.80x = 31,518,231,874.56
  5. Step 5: Solve for x
    x = 31,518,231,874.56/251,929.80
  6. Step 6: Final answer
    x = 125,107.20

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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.