Home / 250,278.09-375,478.62-72,786.63

Finding the Fourth Proportional to 250,278.09, 375,478.62 and 72,786.63

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Solution

The fourth proportional to 250,278.09, 375,478.62 and 72,786.63 is: 109,197.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,278.09 : 375,478.62 = 72,786.63 : x
  2. Step 2: Convert to fraction form
    250,278.09/375,478.62 = 72,786.63/x
  3. Step 3: Cross multiply
    250,278.09x = 375,478.62 × 72,786.63
  4. Step 4: Simplify right side
    250,278.09x = 27,329,823,386.85
  5. Step 5: Solve for x
    x = 27,329,823,386.85/250,278.09
  6. Step 6: Final answer
    x = 109,197.83

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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.