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Finding the Fourth Proportional to 285,600.94, 394,129.29 and 158,284.73

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Solution

The fourth proportional to 285,600.94, 394,129.29 and 158,284.73 is: 218,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,600.94 : 394,129.29 = 158,284.73 : x
  2. Step 2: Convert to fraction form
    285,600.94/394,129.29 = 158,284.73/x
  3. Step 3: Cross multiply
    285,600.94x = 394,129.29 × 158,284.73
  4. Step 4: Simplify right side
    285,600.94x = 62,384,649,831.63
  5. Step 5: Solve for x
    x = 62,384,649,831.63/285,600.94
  6. Step 6: Final answer
    x = 218,432.93

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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.