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Finding the Fourth Proportional to 340,523.51, 509,976.05 and 171,512.15

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Solution

The fourth proportional to 340,523.51, 509,976.05 and 171,512.15 is: 256,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,523.51 : 509,976.05 = 171,512.15 : x
  2. Step 2: Convert to fraction form
    340,523.51/509,976.05 = 171,512.15/x
  3. Step 3: Cross multiply
    340,523.51x = 509,976.05 × 171,512.15
  4. Step 4: Simplify right side
    340,523.51x = 87,467,085,376.57
  5. Step 5: Solve for x
    x = 87,467,085,376.57/340,523.51
  6. Step 6: Final answer
    x = 256,860.64

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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.