Home / 372,402.36-513,827.76-211,220.28

Finding the Fourth Proportional to 372,402.36, 513,827.76 and 211,220.28

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Solution

The fourth proportional to 372,402.36, 513,827.76 and 211,220.28 is: 291,434.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,402.36 : 513,827.76 = 211,220.28 : x
  2. Step 2: Convert to fraction form
    372,402.36/513,827.76 = 211,220.28/x
  3. Step 3: Cross multiply
    372,402.36x = 513,827.76 × 211,220.28
  4. Step 4: Simplify right side
    372,402.36x = 108,530,843,338.97
  5. Step 5: Solve for x
    x = 108,530,843,338.97/372,402.36
  6. Step 6: Final answer
    x = 291,434.36

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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.