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Finding the Fourth Proportional to 490,979.70, 736,469.55 and 158,555.70

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Solution

The fourth proportional to 490,979.70, 736,469.55 and 158,555.70 is: 237,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,979.70 : 736,469.55 = 158,555.70 : x
  2. Step 2: Convert to fraction form
    490,979.70/736,469.55 = 158,555.70/x
  3. Step 3: Cross multiply
    490,979.70x = 736,469.55 × 158,555.70
  4. Step 4: Simplify right side
    490,979.70x = 116,771,445,028.94
  5. Step 5: Solve for x
    x = 116,771,445,028.94/490,979.70
  6. Step 6: Final answer
    x = 237,833.55

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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.