Home / 308,738.96-426,082.65-172,786.52

Finding the Fourth Proportional to 308,738.96, 426,082.65 and 172,786.52

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Solution

The fourth proportional to 308,738.96, 426,082.65 and 172,786.52 is: 238,458.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,738.96 : 426,082.65 = 172,786.52 : x
  2. Step 2: Convert to fraction form
    308,738.96/426,082.65 = 172,786.52/x
  3. Step 3: Cross multiply
    308,738.96x = 426,082.65 × 172,786.52
  4. Step 4: Simplify right side
    308,738.96x = 73,621,338,325.88
  5. Step 5: Solve for x
    x = 73,621,338,325.88/308,738.96
  6. Step 6: Final answer
    x = 238,458.21

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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.