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Finding the Fourth Proportional to 216,040.60, 324,060.90 and 136,324.45

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Solution

The fourth proportional to 216,040.60, 324,060.90 and 136,324.45 is: 204,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,040.60 : 324,060.90 = 136,324.45 : x
  2. Step 2: Convert to fraction form
    216,040.60/324,060.90 = 136,324.45/x
  3. Step 3: Cross multiply
    216,040.60x = 324,060.90 × 136,324.45
  4. Step 4: Simplify right side
    216,040.60x = 44,177,423,959.01
  5. Step 5: Solve for x
    x = 44,177,423,959.01/216,040.60
  6. Step 6: Final answer
    x = 204,486.68

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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.