Home / 372,109.17-513,548.78-219,195.49

Finding the Fourth Proportional to 372,109.17, 513,548.78 and 219,195.49

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Solution

The fourth proportional to 372,109.17, 513,548.78 and 219,195.49 is: 302,512.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,109.17 : 513,548.78 = 219,195.49 : x
  2. Step 2: Convert to fraction form
    372,109.17/513,548.78 = 219,195.49/x
  3. Step 3: Cross multiply
    372,109.17x = 513,548.78 × 219,195.49
  4. Step 4: Simplify right side
    372,109.17x = 112,567,576,471.00
  5. Step 5: Solve for x
    x = 112,567,576,471.00/372,109.17
  6. Step 6: Final answer
    x = 302,512.23

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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.