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Finding the Fourth Proportional to 490,213.50, 735,320.26 and 157,789.50

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Solution

The fourth proportional to 490,213.50, 735,320.26 and 157,789.50 is: 236,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,213.50 : 735,320.26 = 157,789.50 : x
  2. Step 2: Convert to fraction form
    490,213.50/735,320.26 = 157,789.50/x
  3. Step 3: Cross multiply
    490,213.50x = 735,320.26 × 157,789.50
  4. Step 4: Simplify right side
    490,213.50x = 116,025,816,165.27
  5. Step 5: Solve for x
    x = 116,025,816,165.27/490,213.50
  6. Step 6: Final answer
    x = 236,684.25

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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.