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Finding the Fourth Proportional to 259,339.70, 357,874.97 and 144,630.12

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Solution

The fourth proportional to 259,339.70, 357,874.97 and 144,630.12 is: 199,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,339.70 : 357,874.97 = 144,630.12 : x
  2. Step 2: Convert to fraction form
    259,339.70/357,874.97 = 144,630.12/x
  3. Step 3: Cross multiply
    259,339.70x = 357,874.97 × 144,630.12
  4. Step 4: Simplify right side
    259,339.70x = 51,759,499,132.95
  5. Step 5: Solve for x
    x = 51,759,499,132.95/259,339.70
  6. Step 6: Final answer
    x = 199,581.86

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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.