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Finding the Fourth Proportional to 259,297.40, 388,790.52 and 101,337.68

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Solution

The fourth proportional to 259,297.40, 388,790.52 and 101,337.68 is: 151,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,297.40 : 388,790.52 = 101,337.68 : x
  2. Step 2: Convert to fraction form
    259,297.40/388,790.52 = 101,337.68/x
  3. Step 3: Cross multiply
    259,297.40x = 388,790.52 × 101,337.68
  4. Step 4: Simplify right side
    259,297.40x = 39,399,129,302.79
  5. Step 5: Solve for x
    x = 39,399,129,302.79/259,297.40
  6. Step 6: Final answer
    x = 151,945.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.