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Finding the Fourth Proportional to 372,377.67, 512,268.63 and 326,229.49

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Solution

The fourth proportional to 372,377.67, 512,268.63 and 326,229.49 is: 448,783.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,377.67 : 512,268.63 = 326,229.49 : x
  2. Step 2: Convert to fraction form
    372,377.67/512,268.63 = 326,229.49/x
  3. Step 3: Cross multiply
    372,377.67x = 512,268.63 × 326,229.49
  4. Step 4: Simplify right side
    372,377.67x = 167,117,132,276.75
  5. Step 5: Solve for x
    x = 167,117,132,276.75/372,377.67
  6. Step 6: Final answer
    x = 448,783.98

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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.