Home / 317,104.11-437,743.22-221,984.19

Finding the Fourth Proportional to 317,104.11, 437,743.22 and 221,984.19

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Solution

The fourth proportional to 317,104.11, 437,743.22 and 221,984.19 is: 306,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,104.11 : 437,743.22 = 221,984.19 : x
  2. Step 2: Convert to fraction form
    317,104.11/437,743.22 = 221,984.19/x
  3. Step 3: Cross multiply
    317,104.11x = 437,743.22 × 221,984.19
  4. Step 4: Simplify right side
    317,104.11x = 97,172,073,009.77
  5. Step 5: Solve for x
    x = 97,172,073,009.77/317,104.11
  6. Step 6: Final answer
    x = 306,435.87

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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.