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Finding the Fourth Proportional to 376,345.54, 519,120.61 and 223,275.37

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Solution

The fourth proportional to 376,345.54, 519,120.61 and 223,275.37 is: 307,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,345.54 : 519,120.61 = 223,275.37 : x
  2. Step 2: Convert to fraction form
    376,345.54/519,120.61 = 223,275.37/x
  3. Step 3: Cross multiply
    376,345.54x = 519,120.61 × 223,275.37
  4. Step 4: Simplify right side
    376,345.54x = 115,906,846,272.38
  5. Step 5: Solve for x
    x = 115,906,846,272.38/376,345.54
  6. Step 6: Final answer
    x = 307,979.86

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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.