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Finding the Fourth Proportional to 315,005.73, 434,716.86 and 171,773.63

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Solution

The fourth proportional to 315,005.73, 434,716.86 and 171,773.63 is: 237,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,005.73 : 434,716.86 = 171,773.63 : x
  2. Step 2: Convert to fraction form
    315,005.73/434,716.86 = 171,773.63/x
  3. Step 3: Cross multiply
    315,005.73x = 434,716.86 × 171,773.63
  4. Step 4: Simplify right side
    315,005.73x = 74,672,890,890.82
  5. Step 5: Solve for x
    x = 74,672,890,890.82/315,005.73
  6. Step 6: Final answer
    x = 237,052.48

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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.