Home / 399,982.52-551,981.78-270,960.46

Finding the Fourth Proportional to 399,982.52, 551,981.78 and 270,960.46

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Solution

The fourth proportional to 399,982.52, 551,981.78 and 270,960.46 is: 373,929.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,982.52 : 551,981.78 = 270,960.46 : x
  2. Step 2: Convert to fraction form
    399,982.52/551,981.78 = 270,960.46/x
  3. Step 3: Cross multiply
    399,982.52x = 551,981.78 × 270,960.46
  4. Step 4: Simplify right side
    399,982.52x = 149,565,237,020.42
  5. Step 5: Solve for x
    x = 149,565,237,020.42/399,982.52
  6. Step 6: Final answer
    x = 373,929.43

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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.