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Finding the Fourth Proportional to 259,029.75, 388,600.20 and 146,763.75

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Solution

The fourth proportional to 259,029.75, 388,600.20 and 146,763.75 is: 220,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,029.75 : 388,600.20 = 146,763.75 : x
  2. Step 2: Convert to fraction form
    259,029.75/388,600.20 = 146,763.75/x
  3. Step 3: Cross multiply
    259,029.75x = 388,600.20 × 146,763.75
  4. Step 4: Simplify right side
    259,029.75x = 57,032,422,602.75
  5. Step 5: Solve for x
    x = 57,032,422,602.75/259,029.75
  6. Step 6: Final answer
    x = 220,177.11

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1.5x scale

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.