Home / 226,721.90-312,878.86-129,923.84

Finding the Fourth Proportional to 226,721.90, 312,878.86 and 129,923.84

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Solution

The fourth proportional to 226,721.90, 312,878.86 and 129,923.84 is: 179,296.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,721.90 : 312,878.86 = 129,923.84 : x
  2. Step 2: Convert to fraction form
    226,721.90/312,878.86 = 129,923.84/x
  3. Step 3: Cross multiply
    226,721.90x = 312,878.86 × 129,923.84
  4. Step 4: Simplify right side
    226,721.90x = 40,650,422,946.02
  5. Step 5: Solve for x
    x = 40,650,422,946.02/226,721.90
  6. Step 6: Final answer
    x = 179,296.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.