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Finding the Fourth Proportional to 259,372.69, 357,934.32 and 140,140.69

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Solution

The fourth proportional to 259,372.69, 357,934.32 and 140,140.69 is: 193,394.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,372.69 : 357,934.32 = 140,140.69 : x
  2. Step 2: Convert to fraction form
    259,372.69/357,934.32 = 140,140.69/x
  3. Step 3: Cross multiply
    259,372.69x = 357,934.32 × 140,140.69
  4. Step 4: Simplify right side
    259,372.69x = 50,161,161,684.65
  5. Step 5: Solve for x
    x = 50,161,161,684.65/259,372.69
  6. Step 6: Final answer
    x = 193,394.15

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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.