Home / 258,279.12-356,443.68-145,101.84

Finding the Fourth Proportional to 258,279.12, 356,443.68 and 145,101.84

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Solution

The fourth proportional to 258,279.12, 356,443.68 and 145,101.84 is: 200,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,279.12 : 356,443.68 = 145,101.84 : x
  2. Step 2: Convert to fraction form
    258,279.12/356,443.68 = 145,101.84/x
  3. Step 3: Cross multiply
    258,279.12x = 356,443.68 × 145,101.84
  4. Step 4: Simplify right side
    258,279.12x = 51,720,633,824.37
  5. Step 5: Solve for x
    x = 51,720,633,824.37/258,279.12
  6. Step 6: Final answer
    x = 200,250.93

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1.5x scale

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.