Home / 372,022.40-513,392.96-219,067.20

Finding the Fourth Proportional to 372,022.40, 513,392.96 and 219,067.20

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Solution

The fourth proportional to 372,022.40, 513,392.96 and 219,067.20 is: 302,313.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,022.40 : 513,392.96 = 219,067.20 : x
  2. Step 2: Convert to fraction form
    372,022.40/513,392.96 = 219,067.20/x
  3. Step 3: Cross multiply
    372,022.40x = 513,392.96 × 219,067.20
  4. Step 4: Simplify right side
    372,022.40x = 112,467,558,246.91
  5. Step 5: Solve for x
    x = 112,467,558,246.91/372,022.40
  6. Step 6: Final answer
    x = 302,313.94

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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.