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Finding the Fourth Proportional to 512,123.04, 767,539.44 and 245,665.44

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Solution

The fourth proportional to 512,123.04, 767,539.44 and 245,665.44 is: 368,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,123.04 : 767,539.44 = 245,665.44 : x
  2. Step 2: Convert to fraction form
    512,123.04/767,539.44 = 245,665.44/x
  3. Step 3: Cross multiply
    512,123.04x = 767,539.44 × 245,665.44
  4. Step 4: Simplify right side
    512,123.04x = 188,557,914,244.95
  5. Step 5: Solve for x
    x = 188,557,914,244.95/512,123.04
  6. Step 6: Final answer
    x = 368,188.70

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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.