Home / 217,788.04-300,551.11-120,998.21

Finding the Fourth Proportional to 217,788.04, 300,551.11 and 120,998.21

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Solution

The fourth proportional to 217,788.04, 300,551.11 and 120,998.21 is: 166,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,788.04 : 300,551.11 = 120,998.21 : x
  2. Step 2: Convert to fraction form
    217,788.04/300,551.11 = 120,998.21/x
  3. Step 3: Cross multiply
    217,788.04x = 300,551.11 × 120,998.21
  4. Step 4: Simplify right side
    217,788.04x = 36,366,144,518.26
  5. Step 5: Solve for x
    x = 36,366,144,518.26/217,788.04
  6. Step 6: Final answer
    x = 166,979.53

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1.5x scale

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.