Home / 490,786.47-736,188.93-153,819.66

Finding the Fourth Proportional to 490,786.47, 736,188.93 and 153,819.66

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Solution

The fourth proportional to 490,786.47, 736,188.93 and 153,819.66 is: 230,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,786.47 : 736,188.93 = 153,819.66 : x
  2. Step 2: Convert to fraction form
    490,786.47/736,188.93 = 153,819.66/x
  3. Step 3: Cross multiply
    490,786.47x = 736,188.93 × 153,819.66
  4. Step 4: Simplify right side
    490,786.47x = 113,240,330,908.36
  5. Step 5: Solve for x
    x = 113,240,330,908.36/490,786.47
  6. Step 6: Final answer
    x = 230,732.38

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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.