Home / 490,739.91-736,110.03-153,806.70

Finding the Fourth Proportional to 490,739.91, 736,110.03 and 153,806.70

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Solution

The fourth proportional to 490,739.91, 736,110.03 and 153,806.70 is: 230,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,739.91 : 736,110.03 = 153,806.70 : x
  2. Step 2: Convert to fraction form
    490,739.91/736,110.03 = 153,806.70/x
  3. Step 3: Cross multiply
    490,739.91x = 736,110.03 × 153,806.70
  4. Step 4: Simplify right side
    490,739.91x = 113,218,654,551.20
  5. Step 5: Solve for x
    x = 113,218,654,551.20/490,739.91
  6. Step 6: Final answer
    x = 230,710.10

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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.