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Finding the Fourth Proportional to 258,649.39, 356,733.61 and 168,034.35

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Solution

The fourth proportional to 258,649.39, 356,733.61 and 168,034.35 is: 231,755.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,649.39 : 356,733.61 = 168,034.35 : x
  2. Step 2: Convert to fraction form
    258,649.39/356,733.61 = 168,034.35/x
  3. Step 3: Cross multiply
    258,649.39x = 356,733.61 × 168,034.35
  4. Step 4: Simplify right side
    258,649.39x = 59,943,500,279.50
  5. Step 5: Solve for x
    x = 59,943,500,279.50/258,649.39
  6. Step 6: Final answer
    x = 231,755.82

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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.