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Finding the Fourth Proportional to 212,469.78, 318,669.03 and 62,707.26

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Solution

The fourth proportional to 212,469.78, 318,669.03 and 62,707.26 is: 94,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,469.78 : 318,669.03 = 62,707.26 : x
  2. Step 2: Convert to fraction form
    212,469.78/318,669.03 = 62,707.26/x
  3. Step 3: Cross multiply
    212,469.78x = 318,669.03 × 62,707.26
  4. Step 4: Simplify right side
    212,469.78x = 19,982,861,718.16
  5. Step 5: Solve for x
    x = 19,982,861,718.16/212,469.78
  6. Step 6: Final answer
    x = 94,050.37

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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.