Home / 258,313.38-356,480.40-156,357.48

Finding the Fourth Proportional to 258,313.38, 356,480.40 and 156,357.48

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Solution

The fourth proportional to 258,313.38, 356,480.40 and 156,357.48 is: 215,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,313.38 : 356,480.40 = 156,357.48 : x
  2. Step 2: Convert to fraction form
    258,313.38/356,480.40 = 156,357.48/x
  3. Step 3: Cross multiply
    258,313.38x = 356,480.40 × 156,357.48
  4. Step 4: Simplify right side
    258,313.38x = 55,738,377,013.39
  5. Step 5: Solve for x
    x = 55,738,377,013.39/258,313.38
  6. Step 6: Final answer
    x = 215,778.13

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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.