Home / 259,256.42-388,884.06-72,267.92

Finding the Fourth Proportional to 259,256.42, 388,884.06 and 72,267.92

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Solution

The fourth proportional to 259,256.42, 388,884.06 and 72,267.92 is: 108,401.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,256.42 : 388,884.06 = 72,267.92 : x
  2. Step 2: Convert to fraction form
    259,256.42/388,884.06 = 72,267.92/x
  3. Step 3: Cross multiply
    259,256.42x = 388,884.06 × 72,267.92
  4. Step 4: Simplify right side
    259,256.42x = 28,103,840,192.93
  5. Step 5: Solve for x
    x = 28,103,840,192.93/259,256.42
  6. Step 6: Final answer
    x = 108,401.72

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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.