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Finding the Fourth Proportional to 308,805.04, 425,812.54 and 201,175.48

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Solution

The fourth proportional to 308,805.04, 425,812.54 and 201,175.48 is: 277,401.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,805.04 : 425,812.54 = 201,175.48 : x
  2. Step 2: Convert to fraction form
    308,805.04/425,812.54 = 201,175.48/x
  3. Step 3: Cross multiply
    308,805.04x = 425,812.54 × 201,175.48
  4. Step 4: Simplify right side
    308,805.04x = 85,663,042,124.52
  5. Step 5: Solve for x
    x = 85,663,042,124.52/308,805.04
  6. Step 6: Final answer
    x = 277,401.70

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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.