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Finding the Fourth Proportional to 345,100.88, 517,573.56 and 134,630.48

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Solution

The fourth proportional to 345,100.88, 517,573.56 and 134,630.48 is: 201,915.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,100.88 : 517,573.56 = 134,630.48 : x
  2. Step 2: Convert to fraction form
    345,100.88/517,573.56 = 134,630.48/x
  3. Step 3: Cross multiply
    345,100.88x = 517,573.56 × 134,630.48
  4. Step 4: Simplify right side
    345,100.88x = 69,681,176,818.11
  5. Step 5: Solve for x
    x = 69,681,176,818.11/345,100.88
  6. Step 6: Final answer
    x = 201,915.38

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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.