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Finding the Fourth Proportional to 272,441.64, 375,963.60 and 157,725.15

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Solution

The fourth proportional to 272,441.64, 375,963.60 and 157,725.15 is: 217,657.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,441.64 : 375,963.60 = 157,725.15 : x
  2. Step 2: Convert to fraction form
    272,441.64/375,963.60 = 157,725.15/x
  3. Step 3: Cross multiply
    272,441.64x = 375,963.60 × 157,725.15
  4. Step 4: Simplify right side
    272,441.64x = 59,298,915,204.54
  5. Step 5: Solve for x
    x = 59,298,915,204.54/272,441.64
  6. Step 6: Final answer
    x = 217,657.31

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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.