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Finding the Fourth Proportional to 491,388.35, 737,000.51 and 136,438.25

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Solution

The fourth proportional to 491,388.35, 737,000.51 and 136,438.25 is: 204,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,388.35 : 737,000.51 = 136,438.25 : x
  2. Step 2: Convert to fraction form
    491,388.35/737,000.51 = 136,438.25/x
  3. Step 3: Cross multiply
    491,388.35x = 737,000.51 × 136,438.25
  4. Step 4: Simplify right side
    491,388.35x = 100,555,055,466.31
  5. Step 5: Solve for x
    x = 100,555,055,466.31/491,388.35
  6. Step 6: Final answer
    x = 204,634.60

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1.5x scale

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.