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Finding the Fourth Proportional to 421,998.03, 582,404.07 and 240,754.65

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Solution

The fourth proportional to 421,998.03, 582,404.07 and 240,754.65 is: 332,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,998.03 : 582,404.07 = 240,754.65 : x
  2. Step 2: Convert to fraction form
    421,998.03/582,404.07 = 240,754.65/x
  3. Step 3: Cross multiply
    421,998.03x = 582,404.07 × 240,754.65
  4. Step 4: Simplify right side
    421,998.03x = 140,216,488,031.43
  5. Step 5: Solve for x
    x = 140,216,488,031.43/421,998.03
  6. Step 6: Final answer
    x = 332,268.11

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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.