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Finding the Fourth Proportional to 293,958.48, 405,062.28 and 278,079.12

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Solution

The fourth proportional to 293,958.48, 405,062.28 and 278,079.12 is: 383,181.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,958.48 : 405,062.28 = 278,079.12 : x
  2. Step 2: Convert to fraction form
    293,958.48/405,062.28 = 278,079.12/x
  3. Step 3: Cross multiply
    293,958.48x = 405,062.28 × 278,079.12
  4. Step 4: Simplify right side
    293,958.48x = 112,639,362,367.59
  5. Step 5: Solve for x
    x = 112,639,362,367.59/293,958.48
  6. Step 6: Final answer
    x = 383,181.20

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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.