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Finding the Fourth Proportional to 376,485.27, 519,561.86 and 215,340.63

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Solution

The fourth proportional to 376,485.27, 519,561.86 and 215,340.63 is: 297,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,485.27 : 519,561.86 = 215,340.63 : x
  2. Step 2: Convert to fraction form
    376,485.27/519,561.86 = 215,340.63/x
  3. Step 3: Cross multiply
    376,485.27x = 519,561.86 × 215,340.63
  4. Step 4: Simplify right side
    376,485.27x = 111,882,777,179.67
  5. Step 5: Solve for x
    x = 111,882,777,179.67/376,485.27
  6. Step 6: Final answer
    x = 297,177.04

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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.