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Finding the Fourth Proportional to 330,467.82, 456,047.10 and 187,255.78

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Solution

The fourth proportional to 330,467.82, 456,047.10 and 187,255.78 is: 258,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,467.82 : 456,047.10 = 187,255.78 : x
  2. Step 2: Convert to fraction form
    330,467.82/456,047.10 = 187,255.78/x
  3. Step 3: Cross multiply
    330,467.82x = 456,047.10 × 187,255.78
  4. Step 4: Simplify right side
    330,467.82x = 85,397,455,427.24
  5. Step 5: Solve for x
    x = 85,397,455,427.24/330,467.82
  6. Step 6: Final answer
    x = 258,413.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.