Home / 302,980.60-417,959.35-231,236.11

Finding the Fourth Proportional to 302,980.60, 417,959.35 and 231,236.11

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Solution

The fourth proportional to 302,980.60, 417,959.35 and 231,236.11 is: 318,988.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,980.60 : 417,959.35 = 231,236.11 : x
  2. Step 2: Convert to fraction form
    302,980.60/417,959.35 = 231,236.11/x
  3. Step 3: Cross multiply
    302,980.60x = 417,959.35 × 231,236.11
  4. Step 4: Simplify right side
    302,980.60x = 96,647,294,232.13
  5. Step 5: Solve for x
    x = 96,647,294,232.13/302,980.60
  6. Step 6: Final answer
    x = 318,988.39

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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.