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Finding the Fourth Proportional to 377,291.09, 520,876.91 and 250,138.91

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Solution

The fourth proportional to 377,291.09, 520,876.91 and 250,138.91 is: 345,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,291.09 : 520,876.91 = 250,138.91 : x
  2. Step 2: Convert to fraction form
    377,291.09/520,876.91 = 250,138.91/x
  3. Step 3: Cross multiply
    377,291.09x = 520,876.91 × 250,138.91
  4. Step 4: Simplify right side
    377,291.09x = 130,291,582,511.57
  5. Step 5: Solve for x
    x = 130,291,582,511.57/377,291.09
  6. Step 6: Final answer
    x = 345,334.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.