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Finding the Fourth Proportional to 326,873.07, 450,042.08 and 278,934.03

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Solution

The fourth proportional to 326,873.07, 450,042.08 and 278,934.03 is: 384,039.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,873.07 : 450,042.08 = 278,934.03 : x
  2. Step 2: Convert to fraction form
    326,873.07/450,042.08 = 278,934.03/x
  3. Step 3: Cross multiply
    326,873.07x = 450,042.08 × 278,934.03
  4. Step 4: Simplify right side
    326,873.07x = 125,532,049,649.31
  5. Step 5: Solve for x
    x = 125,532,049,649.31/326,873.07
  6. Step 6: Final answer
    x = 384,039.13

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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.