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Finding the Fourth Proportional to 355,274.66, 532,914.30 and 142,060.49

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Solution

The fourth proportional to 355,274.66, 532,914.30 and 142,060.49 is: 213,091.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,274.66 : 532,914.30 = 142,060.49 : x
  2. Step 2: Convert to fraction form
    355,274.66/532,914.30 = 142,060.49/x
  3. Step 3: Cross multiply
    355,274.66x = 532,914.30 × 142,060.49
  4. Step 4: Simplify right side
    355,274.66x = 75,706,063,921.44
  5. Step 5: Solve for x
    x = 75,706,063,921.44/355,274.66
  6. Step 6: Final answer
    x = 213,091.65

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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.