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Finding the Fourth Proportional to 369,142.30, 551,690.40 and 269,512.30

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Solution

The fourth proportional to 369,142.30, 551,690.40 and 269,512.30 is: 402,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,142.30 : 551,690.40 = 269,512.30 : x
  2. Step 2: Convert to fraction form
    369,142.30/551,690.40 = 269,512.30/x
  3. Step 3: Cross multiply
    369,142.30x = 551,690.40 × 269,512.30
  4. Step 4: Simplify right side
    369,142.30x = 148,687,348,591.92
  5. Step 5: Solve for x
    x = 148,687,348,591.92/369,142.30
  6. Step 6: Final answer
    x = 402,791.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.