Home / 215,055.44-322,636.08-74,815.28

Finding the Fourth Proportional to 215,055.44, 322,636.08 and 74,815.28

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Solution

The fourth proportional to 215,055.44, 322,636.08 and 74,815.28 is: 112,241.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,055.44 : 322,636.08 = 74,815.28 : x
  2. Step 2: Convert to fraction form
    215,055.44/322,636.08 = 74,815.28/x
  3. Step 3: Cross multiply
    215,055.44x = 322,636.08 × 74,815.28
  4. Step 4: Simplify right side
    215,055.44x = 24,138,108,663.30
  5. Step 5: Solve for x
    x = 24,138,108,663.30/215,055.44
  6. Step 6: Final answer
    x = 112,241.33

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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.