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Finding the Fourth Proportional to 491,476.35, 737,214.80 and 136,490.34

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Solution

The fourth proportional to 491,476.35, 737,214.80 and 136,490.34 is: 204,735.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,476.35 : 737,214.80 = 136,490.34 : x
  2. Step 2: Convert to fraction form
    491,476.35/737,214.80 = 136,490.34/x
  3. Step 3: Cross multiply
    491,476.35x = 737,214.80 × 136,490.34
  4. Step 4: Simplify right side
    491,476.35x = 100,622,698,705.03
  5. Step 5: Solve for x
    x = 100,622,698,705.03/491,476.35
  6. Step 6: Final answer
    x = 204,735.59

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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.