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Finding the Fourth Proportional to 317,484.43, 438,155.40 and 174,268.73

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Solution

The fourth proportional to 317,484.43, 438,155.40 and 174,268.73 is: 240,505.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,484.43 : 438,155.40 = 174,268.73 : x
  2. Step 2: Convert to fraction form
    317,484.43/438,155.40 = 174,268.73/x
  3. Step 3: Cross multiply
    317,484.43x = 438,155.40 × 174,268.73
  4. Step 4: Simplify right side
    317,484.43x = 76,356,785,100.64
  5. Step 5: Solve for x
    x = 76,356,785,100.64/317,484.43
  6. Step 6: Final answer
    x = 240,505.61

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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.