Home / 490,739.09-736,108.81-153,805.89

Finding the Fourth Proportional to 490,739.09, 736,108.81 and 153,805.89

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Solution

The fourth proportional to 490,739.09, 736,108.81 and 153,805.89 is: 230,708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,739.09 : 736,108.81 = 153,805.89 : x
  2. Step 2: Convert to fraction form
    490,739.09/736,108.81 = 153,805.89/x
  3. Step 3: Cross multiply
    490,739.09x = 736,108.81 × 153,805.89
  4. Step 4: Simplify right side
    490,739.09x = 113,217,870,658.89
  5. Step 5: Solve for x
    x = 113,217,870,658.89/490,739.09
  6. Step 6: Final answer
    x = 230,708.89

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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.