Home / 285,703.15-394,190.56-225,085.66

Finding the Fourth Proportional to 285,703.15, 394,190.56 and 225,085.66

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Solution

The fourth proportional to 285,703.15, 394,190.56 and 225,085.66 is: 310,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,703.15 : 394,190.56 = 225,085.66 : x
  2. Step 2: Convert to fraction form
    285,703.15/394,190.56 = 225,085.66/x
  3. Step 3: Cross multiply
    285,703.15x = 394,190.56 × 225,085.66
  4. Step 4: Simplify right side
    285,703.15x = 88,726,642,363.37
  5. Step 5: Solve for x
    x = 88,726,642,363.37/285,703.15
  6. Step 6: Final answer
    x = 310,555.35

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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.