Home / 258,220.14-356,377.20-145,042.86

Finding the Fourth Proportional to 258,220.14, 356,377.20 and 145,042.86

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Solution

The fourth proportional to 258,220.14, 356,377.20 and 145,042.86 is: 200,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,220.14 : 356,377.20 = 145,042.86 : x
  2. Step 2: Convert to fraction form
    258,220.14/356,377.20 = 145,042.86/x
  3. Step 3: Cross multiply
    258,220.14x = 356,377.20 × 145,042.86
  4. Step 4: Simplify right side
    258,220.14x = 51,689,968,326.79
  5. Step 5: Solve for x
    x = 51,689,968,326.79/258,220.14
  6. Step 6: Final answer
    x = 200,177.91

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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.