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Finding the Fourth Proportional to 505,549.80, 758,337.50 and 131,590.12

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Solution

The fourth proportional to 505,549.80, 758,337.50 and 131,590.12 is: 197,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,549.80 : 758,337.50 = 131,590.12 : x
  2. Step 2: Convert to fraction form
    505,549.80/758,337.50 = 131,590.12/x
  3. Step 3: Cross multiply
    505,549.80x = 758,337.50 × 131,590.12
  4. Step 4: Simplify right side
    505,549.80x = 99,789,722,625.50
  5. Step 5: Solve for x
    x = 99,789,722,625.50/505,549.80
  6. Step 6: Final answer
    x = 197,388.51

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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.