Home / 372,240.07-513,782.54-211,189.39

Finding the Fourth Proportional to 372,240.07, 513,782.54 and 211,189.39

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Solution

The fourth proportional to 372,240.07, 513,782.54 and 211,189.39 is: 291,493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,240.07 : 513,782.54 = 211,189.39 : x
  2. Step 2: Convert to fraction form
    372,240.07/513,782.54 = 211,189.39/x
  3. Step 3: Cross multiply
    372,240.07x = 513,782.54 × 211,189.39
  4. Step 4: Simplify right side
    372,240.07x = 108,505,420,159.30
  5. Step 5: Solve for x
    x = 108,505,420,159.30/372,240.07
  6. Step 6: Final answer
    x = 291,493.12

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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.