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Finding the Fourth Proportional to 505,768.75, 758,550.15 and 185,810.65

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Solution

The fourth proportional to 505,768.75, 758,550.15 and 185,810.65 is: 278,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,768.75 : 758,550.15 = 185,810.65 : x
  2. Step 2: Convert to fraction form
    505,768.75/758,550.15 = 185,810.65/x
  3. Step 3: Cross multiply
    505,768.75x = 758,550.15 × 185,810.65
  4. Step 4: Simplify right side
    505,768.75x = 140,946,696,429.10
  5. Step 5: Solve for x
    x = 140,946,696,429.10/505,768.75
  6. Step 6: Final answer
    x = 278,678.14

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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.