Home / 312,334.24-431,033.52-176,396.80

Finding the Fourth Proportional to 312,334.24, 431,033.52 and 176,396.80

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Solution

The fourth proportional to 312,334.24, 431,033.52 and 176,396.80 is: 243,434.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,334.24 : 431,033.52 = 176,396.80 : x
  2. Step 2: Convert to fraction form
    312,334.24/431,033.52 = 176,396.80/x
  3. Step 3: Cross multiply
    312,334.24x = 431,033.52 × 176,396.80
  4. Step 4: Simplify right side
    312,334.24x = 76,032,933,620.74
  5. Step 5: Solve for x
    x = 76,032,933,620.74/312,334.24
  6. Step 6: Final answer
    x = 243,434.51

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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.