Home / 490,738.89-736,108.50-153,805.68

Finding the Fourth Proportional to 490,738.89, 736,108.50 and 153,805.68

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Solution

The fourth proportional to 490,738.89, 736,108.50 and 153,805.68 is: 230,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,738.89 : 736,108.50 = 153,805.68 : x
  2. Step 2: Convert to fraction form
    490,738.89/736,108.50 = 153,805.68/x
  3. Step 3: Cross multiply
    490,738.89x = 736,108.50 × 153,805.68
  4. Step 4: Simplify right side
    490,738.89x = 113,217,668,396.28
  5. Step 5: Solve for x
    x = 113,217,668,396.28/490,738.89
  6. Step 6: Final answer
    x = 230,708.57

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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.