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Finding the Fourth Proportional to 340,611.53, 510,979.28 and 115,960.46

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Solution

The fourth proportional to 340,611.53, 510,979.28 and 115,960.46 is: 173,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,611.53 : 510,979.28 = 115,960.46 : x
  2. Step 2: Convert to fraction form
    340,611.53/510,979.28 = 115,960.46/x
  3. Step 3: Cross multiply
    340,611.53x = 510,979.28 × 115,960.46
  4. Step 4: Simplify right side
    340,611.53x = 59,253,389,224.57
  5. Step 5: Solve for x
    x = 59,253,389,224.57/340,611.53
  6. Step 6: Final answer
    x = 173,961.79

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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.