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Finding the Fourth Proportional to 490,791.38, 736,196.29 and 153,824.58

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Solution

The fourth proportional to 490,791.38, 736,196.29 and 153,824.58 is: 230,739.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,791.38 : 736,196.29 = 153,824.58 : x
  2. Step 2: Convert to fraction form
    490,791.38/736,196.29 = 153,824.58/x
  3. Step 3: Cross multiply
    490,791.38x = 736,196.29 × 153,824.58
  4. Step 4: Simplify right side
    490,791.38x = 113,245,084,722.25
  5. Step 5: Solve for x
    x = 113,245,084,722.25/490,791.38
  6. Step 6: Final answer
    x = 230,739.76

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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.