Home / 285,821.10-394,407.27-158,496.30

Finding the Fourth Proportional to 285,821.10, 394,407.27 and 158,496.30

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Solution

The fourth proportional to 285,821.10, 394,407.27 and 158,496.30 is: 218,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,821.10 : 394,407.27 = 158,496.30 : x
  2. Step 2: Convert to fraction form
    285,821.10/394,407.27 = 158,496.30/x
  3. Step 3: Cross multiply
    285,821.10x = 394,407.27 × 158,496.30
  4. Step 4: Simplify right side
    285,821.10x = 62,512,092,988.10
  5. Step 5: Solve for x
    x = 62,512,092,988.10/285,821.10
  6. Step 6: Final answer
    x = 218,710.56

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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.