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Finding the Fourth Proportional to 285,856.66, 394,468.68 and 158,529.52

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Solution

The fourth proportional to 285,856.66, 394,468.68 and 158,529.52 is: 218,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,856.66 : 394,468.68 = 158,529.52 : x
  2. Step 2: Convert to fraction form
    285,856.66/394,468.68 = 158,529.52/x
  3. Step 3: Cross multiply
    285,856.66x = 394,468.68 × 158,529.52
  4. Step 4: Simplify right side
    285,856.66x = 62,534,930,495.43
  5. Step 5: Solve for x
    x = 62,534,930,495.43/285,856.66
  6. Step 6: Final answer
    x = 218,763.24

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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.