Home / 372,190.39-513,359.71-257,504.11

Finding the Fourth Proportional to 372,190.39, 513,359.71 and 257,504.11

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Solution

The fourth proportional to 372,190.39, 513,359.71 and 257,504.11 is: 355,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,190.39 : 513,359.71 = 257,504.11 : x
  2. Step 2: Convert to fraction form
    372,190.39/513,359.71 = 257,504.11/x
  3. Step 3: Cross multiply
    372,190.39x = 513,359.71 × 257,504.11
  4. Step 4: Simplify right side
    372,190.39x = 132,192,235,233.41
  5. Step 5: Solve for x
    x = 132,192,235,233.41/372,190.39
  6. Step 6: Final answer
    x = 355,173.69

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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.