Home / 285,619.68-394,152.70-156,565.33

Finding the Fourth Proportional to 285,619.68, 394,152.70 and 156,565.33

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Solution

The fourth proportional to 285,619.68, 394,152.70 and 156,565.33 is: 216,058.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,619.68 : 394,152.70 = 156,565.33 : x
  2. Step 2: Convert to fraction form
    285,619.68/394,152.70 = 156,565.33/x
  3. Step 3: Cross multiply
    285,619.68x = 394,152.70 × 156,565.33
  4. Step 4: Simplify right side
    285,619.68x = 61,710,647,545.89
  5. Step 5: Solve for x
    x = 61,710,647,545.89/285,619.68
  6. Step 6: Final answer
    x = 216,058.81

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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.