Home / 216,623.71-324,810.49-66,823.78

Finding the Fourth Proportional to 216,623.71, 324,810.49 and 66,823.78

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Solution

The fourth proportional to 216,623.71, 324,810.49 and 66,823.78 is: 100,197.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,623.71 : 324,810.49 = 66,823.78 : x
  2. Step 2: Convert to fraction form
    216,623.71/324,810.49 = 66,823.78/x
  3. Step 3: Cross multiply
    216,623.71x = 324,810.49 × 66,823.78
  4. Step 4: Simplify right side
    216,623.71x = 21,705,064,725.45
  5. Step 5: Solve for x
    x = 21,705,064,725.45/216,623.71
  6. Step 6: Final answer
    x = 100,197.09

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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.