Home / 330,696.12-456,457.78-215,992.32

Finding the Fourth Proportional to 330,696.12, 456,457.78 and 215,992.32

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Solution

The fourth proportional to 330,696.12, 456,457.78 and 215,992.32 is: 298,132.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,696.12 : 456,457.78 = 215,992.32 : x
  2. Step 2: Convert to fraction form
    330,696.12/456,457.78 = 215,992.32/x
  3. Step 3: Cross multiply
    330,696.12x = 456,457.78 × 215,992.32
  4. Step 4: Simplify right side
    330,696.12x = 98,591,374,884.25
  5. Step 5: Solve for x
    x = 98,591,374,884.25/330,696.12
  6. Step 6: Final answer
    x = 298,132.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.