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Finding the Fourth Proportional to 491,968, 737,939.04 and 136,967.68

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Solution

The fourth proportional to 491,968, 737,939.04 and 136,967.68 is: 205,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,968 : 737,939.04 = 136,967.68 : x
  2. Step 2: Convert to fraction form
    491,968/737,939.04 = 136,967.68/x
  3. Step 3: Cross multiply
    491,968x = 737,939.04 × 136,967.68
  4. Step 4: Simplify right side
    491,968x = 101,073,798,290.23
  5. Step 5: Solve for x
    x = 101,073,798,290.23/491,968
  6. Step 6: Final answer
    x = 205,447.91

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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.