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Finding the Fourth Proportional to 216,228.56, 324,383.16 and 83,103.44

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Solution

The fourth proportional to 216,228.56, 324,383.16 and 83,103.44 is: 124,670.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,228.56 : 324,383.16 = 83,103.44 : x
  2. Step 2: Convert to fraction form
    216,228.56/324,383.16 = 83,103.44/x
  3. Step 3: Cross multiply
    216,228.56x = 324,383.16 × 83,103.44
  4. Step 4: Simplify right side
    216,228.56x = 26,957,356,474.07
  5. Step 5: Solve for x
    x = 26,957,356,474.07/216,228.56
  6. Step 6: Final answer
    x = 124,670.66

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1.5x scale

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.