Home / 261,231.81-391,519.75-141,283.98

Finding the Fourth Proportional to 261,231.81, 391,519.75 and 141,283.98

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Solution

The fourth proportional to 261,231.81, 391,519.75 and 141,283.98 is: 211,748.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,231.81 : 391,519.75 = 141,283.98 : x
  2. Step 2: Convert to fraction form
    261,231.81/391,519.75 = 141,283.98/x
  3. Step 3: Cross multiply
    261,231.81x = 391,519.75 × 141,283.98
  4. Step 4: Simplify right side
    261,231.81x = 55,315,468,528.61
  5. Step 5: Solve for x
    x = 55,315,468,528.61/261,231.81
  6. Step 6: Final answer
    x = 211,748.59

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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.