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Finding the Third Proportional to 216,140.06 and 311,316.75

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Solution

The third proportional to 216,140.06 and 311,316.75 is: 448,404.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,140.06 : 311,316.75 = 311,316.75 : x
  2. Step 2: Convert to fraction form
    216,140.06/311,316.75 = 311,316.75/x
  3. Step 3: Cross multiply
    216,140.06x = 311,316.75 × 311,316.75
  4. Step 4: Simplify right side
    216,140.06x = 96,918,118,830.56
  5. Step 5: Solve for x
    x = 96,918,118,830.56/216,140.06
  6. Step 6: Final answer
    x = 448,404.23

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.