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Finding the Fourth Proportional to 216,557.60, 324,617.70 and 98,313.80

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Solution

The fourth proportional to 216,557.60, 324,617.70 and 98,313.80 is: 147,371.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,557.60 : 324,617.70 = 98,313.80 : x
  2. Step 2: Convert to fraction form
    216,557.60/324,617.70 = 98,313.80/x
  3. Step 3: Cross multiply
    216,557.60x = 324,617.70 × 98,313.80
  4. Step 4: Simplify right side
    216,557.60x = 31,914,399,634.26
  5. Step 5: Solve for x
    x = 31,914,399,634.26/216,557.60
  6. Step 6: Final answer
    x = 147,371.41

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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.