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Finding the Fourth Proportional to 308,452.98, 424,718.81 and 269,997.33

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Solution

The fourth proportional to 308,452.98, 424,718.81 and 269,997.33 is: 371,767.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,452.98 : 424,718.81 = 269,997.33 : x
  2. Step 2: Convert to fraction form
    308,452.98/424,718.81 = 269,997.33/x
  3. Step 3: Cross multiply
    308,452.98x = 424,718.81 × 269,997.33
  4. Step 4: Simplify right side
    308,452.98x = 114,672,943,350.79
  5. Step 5: Solve for x
    x = 114,672,943,350.79/308,452.98
  6. Step 6: Final answer
    x = 371,767.99

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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.