Home / 216,401.43-324,605.76-98,073.78

Finding the Fourth Proportional to 216,401.43, 324,605.76 and 98,073.78

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Solution

The fourth proportional to 216,401.43, 324,605.76 and 98,073.78 is: 147,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,401.43 : 324,605.76 = 98,073.78 : x
  2. Step 2: Convert to fraction form
    216,401.43/324,605.76 = 98,073.78/x
  3. Step 3: Cross multiply
    216,401.43x = 324,605.76 × 98,073.78
  4. Step 4: Simplify right side
    216,401.43x = 31,835,313,892.97
  5. Step 5: Solve for x
    x = 31,835,313,892.97/216,401.43
  6. Step 6: Final answer
    x = 147,112.31

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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.