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Finding the Fourth Proportional to 291,879.59, 436,966.38 and 263,864.12

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Solution

The fourth proportional to 291,879.59, 436,966.38 and 263,864.12 is: 395,025.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,879.59 : 436,966.38 = 263,864.12 : x
  2. Step 2: Convert to fraction form
    291,879.59/436,966.38 = 263,864.12/x
  3. Step 3: Cross multiply
    291,879.59x = 436,966.38 × 263,864.12
  4. Step 4: Simplify right side
    291,879.59x = 115,299,747,143.45
  5. Step 5: Solve for x
    x = 115,299,747,143.45/291,879.59
  6. Step 6: Final answer
    x = 395,025.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.