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Finding the Fourth Proportional to 214,599.84, 322,016.40 and 90,028.32

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Solution

The fourth proportional to 214,599.84, 322,016.40 and 90,028.32 is: 135,091.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,599.84 : 322,016.40 = 90,028.32 : x
  2. Step 2: Convert to fraction form
    214,599.84/322,016.40 = 90,028.32/x
  3. Step 3: Cross multiply
    214,599.84x = 322,016.40 × 90,028.32
  4. Step 4: Simplify right side
    214,599.84x = 28,990,595,504.45
  5. Step 5: Solve for x
    x = 28,990,595,504.45/214,599.84
  6. Step 6: Final answer
    x = 135,091.41

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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.