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Finding the Fourth Proportional to 285,999.14, 394,673.56 and 158,672.00

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Solution

The fourth proportional to 285,999.14, 394,673.56 and 158,672.00 is: 218,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,999.14 : 394,673.56 = 158,672.00 : x
  2. Step 2: Convert to fraction form
    285,999.14/394,673.56 = 158,672.00/x
  3. Step 3: Cross multiply
    285,999.14x = 394,673.56 × 158,672.00
  4. Step 4: Simplify right side
    285,999.14x = 62,623,640,345.59
  5. Step 5: Solve for x
    x = 62,623,640,345.59/285,999.14
  6. Step 6: Final answer
    x = 218,964.44

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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.