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Finding the Fourth Proportional to 259,308.29, 357,031.10 and 220,469.73

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Solution

The fourth proportional to 259,308.29, 357,031.10 and 220,469.73 is: 303,555.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,308.29 : 357,031.10 = 220,469.73 : x
  2. Step 2: Convert to fraction form
    259,308.29/357,031.10 = 220,469.73/x
  3. Step 3: Cross multiply
    259,308.29x = 357,031.10 × 220,469.73
  4. Step 4: Simplify right side
    259,308.29x = 78,714,549,116.25
  5. Step 5: Solve for x
    x = 78,714,549,116.25/259,308.29
  6. Step 6: Final answer
    x = 303,555.86

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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.