Home / 317,668.12-476,429.40-189,620.56

Finding the Fourth Proportional to 317,668.12, 476,429.40 and 189,620.56

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Solution

The fourth proportional to 317,668.12, 476,429.40 and 189,620.56 is: 284,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,668.12 : 476,429.40 = 189,620.56 : x
  2. Step 2: Convert to fraction form
    317,668.12/476,429.40 = 189,620.56/x
  3. Step 3: Cross multiply
    317,668.12x = 476,429.40 × 189,620.56
  4. Step 4: Simplify right side
    317,668.12x = 90,340,809,628.46
  5. Step 5: Solve for x
    x = 90,340,809,628.46/317,668.12
  6. Step 6: Final answer
    x = 284,387.40

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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.