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Finding the Fourth Proportional to 317,995.43, 438,828.75 and 174,752.42

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Solution

The fourth proportional to 317,995.43, 438,828.75 and 174,752.42 is: 241,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,995.43 : 438,828.75 = 174,752.42 : x
  2. Step 2: Convert to fraction form
    317,995.43/438,828.75 = 174,752.42/x
  3. Step 3: Cross multiply
    317,995.43x = 438,828.75 × 174,752.42
  4. Step 4: Simplify right side
    317,995.43x = 76,686,383,833.93
  5. Step 5: Solve for x
    x = 76,686,383,833.93/317,995.43
  6. Step 6: Final answer
    x = 241,155.62

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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.