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Finding the Fourth Proportional to 269,145.90, 404,593.65 and 190,802.70

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Solution

The fourth proportional to 269,145.90, 404,593.65 and 190,802.70 is: 286,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,145.90 : 404,593.65 = 190,802.70 : x
  2. Step 2: Convert to fraction form
    269,145.90/404,593.65 = 190,802.70/x
  3. Step 3: Cross multiply
    269,145.90x = 404,593.65 × 190,802.70
  4. Step 4: Simplify right side
    269,145.90x = 77,197,560,822.86
  5. Step 5: Solve for x
    x = 77,197,560,822.86/269,145.90
  6. Step 6: Final answer
    x = 286,824.21

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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.