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Finding the Fourth Proportional to 285,900.76, 394,543.27 and 158,577.27

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Solution

The fourth proportional to 285,900.76, 394,543.27 and 158,577.27 is: 218,836.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,900.76 : 394,543.27 = 158,577.27 : x
  2. Step 2: Convert to fraction form
    285,900.76/394,543.27 = 158,577.27/x
  3. Step 3: Cross multiply
    285,900.76x = 394,543.27 × 158,577.27
  4. Step 4: Simplify right side
    285,900.76x = 62,565,594,653.47
  5. Step 5: Solve for x
    x = 62,565,594,653.47/285,900.76
  6. Step 6: Final answer
    x = 218,836.76

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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.