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Finding the Fourth Proportional to 216,370.51, 324,586.49 and 66,623.23

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Solution

The fourth proportional to 216,370.51, 324,586.49 and 66,623.23 is: 99,944.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,370.51 : 324,586.49 = 66,623.23 : x
  2. Step 2: Convert to fraction form
    216,370.51/324,586.49 = 66,623.23/x
  3. Step 3: Cross multiply
    216,370.51x = 324,586.49 × 66,623.23
  4. Step 4: Simplify right side
    216,370.51x = 21,625,000,045.05
  5. Step 5: Solve for x
    x = 21,625,000,045.05/216,370.51
  6. Step 6: Final answer
    x = 99,944.30

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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.