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Finding the Fourth Proportional to 285,950.87, 394,659.51 and 158,667.47

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Solution

The fourth proportional to 285,950.87, 394,659.51 and 158,667.47 is: 218,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,950.87 : 394,659.51 = 158,667.47 : x
  2. Step 2: Convert to fraction form
    285,950.87/394,659.51 = 158,667.47/x
  3. Step 3: Cross multiply
    285,950.87x = 394,659.51 × 158,667.47
  4. Step 4: Simplify right side
    285,950.87x = 62,619,625,963.14
  5. Step 5: Solve for x
    x = 62,619,625,963.14/285,950.87
  6. Step 6: Final answer
    x = 218,987.36

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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.