Home / 381,153.29-571,668.60-111,218.05

Finding the Fourth Proportional to 381,153.29, 571,668.60 and 111,218.05

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Solution

The fourth proportional to 381,153.29, 571,668.60 and 111,218.05 is: 166,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,153.29 : 571,668.60 = 111,218.05 : x
  2. Step 2: Convert to fraction form
    381,153.29/571,668.60 = 111,218.05/x
  3. Step 3: Cross multiply
    381,153.29x = 571,668.60 × 111,218.05
  4. Step 4: Simplify right side
    381,153.29x = 63,579,866,938.23
  5. Step 5: Solve for x
    x = 63,579,866,938.23/381,153.29
  6. Step 6: Final answer
    x = 166,809.18

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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.