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Finding the Fourth Proportional to 471,375.20, 650,496.57 and 256,515.21

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Solution

The fourth proportional to 471,375.20, 650,496.57 and 256,515.21 is: 353,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,375.20 : 650,496.57 = 256,515.21 : x
  2. Step 2: Convert to fraction form
    471,375.20/650,496.57 = 256,515.21/x
  3. Step 3: Cross multiply
    471,375.20x = 650,496.57 × 256,515.21
  4. Step 4: Simplify right side
    471,375.20x = 166,862,264,257.83
  5. Step 5: Solve for x
    x = 166,862,264,257.83/471,375.20
  6. Step 6: Final answer
    x = 353,990.34

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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.