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Finding the Fourth Proportional to 308,021.82, 425,486.15 and 232,114.69

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Solution

The fourth proportional to 308,021.82, 425,486.15 and 232,114.69 is: 320,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,021.82 : 425,486.15 = 232,114.69 : x
  2. Step 2: Convert to fraction form
    308,021.82/425,486.15 = 232,114.69/x
  3. Step 3: Cross multiply
    308,021.82x = 425,486.15 × 232,114.69
  4. Step 4: Simplify right side
    308,021.82x = 98,761,585,806.54
  5. Step 5: Solve for x
    x = 98,761,585,806.54/308,021.82
  6. Step 6: Final answer
    x = 320,631.78

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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.