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Finding the Fourth Proportional to 490,951.58, 736,427.46 and 135,965.66

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Solution

The fourth proportional to 490,951.58, 736,427.46 and 135,965.66 is: 203,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,951.58 : 736,427.46 = 135,965.66 : x
  2. Step 2: Convert to fraction form
    490,951.58/736,427.46 = 135,965.66/x
  3. Step 3: Cross multiply
    490,951.58x = 736,427.46 × 135,965.66
  4. Step 4: Simplify right side
    490,951.58x = 100,128,845,641.02
  5. Step 5: Solve for x
    x = 100,128,845,641.02/490,951.58
  6. Step 6: Final answer
    x = 203,948.51

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Similar ratio
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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.