Home / 261,208.29-391,960.08-111,434.43

Finding the Fourth Proportional to 261,208.29, 391,960.08 and 111,434.43

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Solution

The fourth proportional to 261,208.29, 391,960.08 and 111,434.43 is: 167,214.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,208.29 : 391,960.08 = 111,434.43 : x
  2. Step 2: Convert to fraction form
    261,208.29/391,960.08 = 111,434.43/x
  3. Step 3: Cross multiply
    261,208.29x = 391,960.08 × 111,434.43
  4. Step 4: Simplify right side
    261,208.29x = 43,677,848,097.55
  5. Step 5: Solve for x
    x = 43,677,848,097.55/261,208.29
  6. Step 6: Final answer
    x = 167,214.63

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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.