Home / 457,288.22-685,965.54-157,764.80

Finding the Fourth Proportional to 457,288.22, 685,965.54 and 157,764.80

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Solution

The fourth proportional to 457,288.22, 685,965.54 and 157,764.80 is: 236,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,288.22 : 685,965.54 = 157,764.80 : x
  2. Step 2: Convert to fraction form
    457,288.22/685,965.54 = 157,764.80/x
  3. Step 3: Cross multiply
    457,288.22x = 685,965.54 × 157,764.80
  4. Step 4: Simplify right side
    457,288.22x = 108,221,216,224.99
  5. Step 5: Solve for x
    x = 108,221,216,224.99/457,288.22
  6. Step 6: Final answer
    x = 236,658.66

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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.