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Finding the Fourth Proportional to 216,258.96, 324,457.84 and 103,947.32

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Solution

The fourth proportional to 216,258.96, 324,457.84 and 103,947.32 is: 155,954.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,258.96 : 324,457.84 = 103,947.32 : x
  2. Step 2: Convert to fraction form
    216,258.96/324,457.84 = 103,947.32/x
  3. Step 3: Cross multiply
    216,258.96x = 324,457.84 × 103,947.32
  4. Step 4: Simplify right side
    216,258.96x = 33,726,522,920.99
  5. Step 5: Solve for x
    x = 33,726,522,920.99/216,258.96
  6. Step 6: Final answer
    x = 155,954.34

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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.