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Finding the Fourth Proportional to 325,040.75, 487,650.83 and 135,590.16

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Solution

The fourth proportional to 325,040.75, 487,650.83 and 135,590.16 is: 203,422.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,040.75 : 487,650.83 = 135,590.16 : x
  2. Step 2: Convert to fraction form
    325,040.75/487,650.83 = 135,590.16/x
  3. Step 3: Cross multiply
    325,040.75x = 487,650.83 × 135,590.16
  4. Step 4: Simplify right side
    325,040.75x = 66,120,654,063.83
  5. Step 5: Solve for x
    x = 66,120,654,063.83/325,040.75
  6. Step 6: Final answer
    x = 203,422.66

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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.