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Finding the Fourth Proportional to 259,107.92, 357,570.12 and 145,932.56

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Solution

The fourth proportional to 259,107.92, 357,570.12 and 145,932.56 is: 201,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,107.92 : 357,570.12 = 145,932.56 : x
  2. Step 2: Convert to fraction form
    259,107.92/357,570.12 = 145,932.56/x
  3. Step 3: Cross multiply
    259,107.92x = 357,570.12 × 145,932.56
  4. Step 4: Simplify right side
    259,107.92x = 52,181,122,991.11
  5. Step 5: Solve for x
    x = 52,181,122,991.11/259,107.92
  6. Step 6: Final answer
    x = 201,387.60

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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.