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Finding the Fourth Proportional to 215,143.74, 322,660.80 and 152,551.80

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Solution

The fourth proportional to 215,143.74, 322,660.80 and 152,551.80 is: 228,788.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,143.74 : 322,660.80 = 152,551.80 : x
  2. Step 2: Convert to fraction form
    215,143.74/322,660.80 = 152,551.80/x
  3. Step 3: Cross multiply
    215,143.74x = 322,660.80 × 152,551.80
  4. Step 4: Simplify right side
    215,143.74x = 49,222,485,829.44
  5. Step 5: Solve for x
    x = 49,222,485,829.44/215,143.74
  6. Step 6: Final answer
    x = 228,788.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.