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Finding the Fourth Proportional to 379,886.48, 524,347 and 236,561.84

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Solution

The fourth proportional to 379,886.48, 524,347 and 236,561.84 is: 326,519.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,886.48 : 524,347 = 236,561.84 : x
  2. Step 2: Convert to fraction form
    379,886.48/524,347 = 236,561.84/x
  3. Step 3: Cross multiply
    379,886.48x = 524,347 × 236,561.84
  4. Step 4: Simplify right side
    379,886.48x = 124,040,491,118.48
  5. Step 5: Solve for x
    x = 124,040,491,118.48/379,886.48
  6. Step 6: Final answer
    x = 326,519.89

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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.