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Finding the Fourth Proportional to 285,901.66, 394,591.54 and 158,618.26

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Solution

The fourth proportional to 285,901.66, 394,591.54 and 158,618.26 is: 218,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,901.66 : 394,591.54 = 158,618.26 : x
  2. Step 2: Convert to fraction form
    285,901.66/394,591.54 = 158,618.26/x
  3. Step 3: Cross multiply
    285,901.66x = 394,591.54 × 158,618.26
  4. Step 4: Simplify right side
    285,901.66x = 62,589,423,485.52
  5. Step 5: Solve for x
    x = 62,589,423,485.52/285,901.66
  6. Step 6: Final answer
    x = 218,919.41

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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.