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Finding the Fourth Proportional to 220,731.51, 330,647.88 and 202,340.19

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Solution

The fourth proportional to 220,731.51, 330,647.88 and 202,340.19 is: 303,098.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,731.51 : 330,647.88 = 202,340.19 : x
  2. Step 2: Convert to fraction form
    220,731.51/330,647.88 = 202,340.19/x
  3. Step 3: Cross multiply
    220,731.51x = 330,647.88 × 202,340.19
  4. Step 4: Simplify right side
    220,731.51x = 66,903,354,862.30
  5. Step 5: Solve for x
    x = 66,903,354,862.30/220,731.51
  6. Step 6: Final answer
    x = 303,098.34

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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.