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Finding the Fourth Proportional to 255,144.87, 382,480.65 and 112,914.54

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Solution

The fourth proportional to 255,144.87, 382,480.65 and 112,914.54 is: 169,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,144.87 : 382,480.65 = 112,914.54 : x
  2. Step 2: Convert to fraction form
    255,144.87/382,480.65 = 112,914.54/x
  3. Step 3: Cross multiply
    255,144.87x = 382,480.65 × 112,914.54
  4. Step 4: Simplify right side
    255,144.87x = 43,187,626,653.65
  5. Step 5: Solve for x
    x = 43,187,626,653.65/255,144.87
  6. Step 6: Final answer
    x = 169,267.08

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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.