Home / 285,545.19-394,054.70-158,222.91

Finding the Fourth Proportional to 285,545.19, 394,054.70 and 158,222.91

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Solution

The fourth proportional to 285,545.19, 394,054.70 and 158,222.91 is: 218,348.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,545.19 : 394,054.70 = 158,222.91 : x
  2. Step 2: Convert to fraction form
    285,545.19/394,054.70 = 158,222.91/x
  3. Step 3: Cross multiply
    285,545.19x = 394,054.70 × 158,222.91
  4. Step 4: Simplify right side
    285,545.19x = 62,348,480,542.06
  5. Step 5: Solve for x
    x = 62,348,480,542.06/285,545.19
  6. Step 6: Final answer
    x = 218,348.91

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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.