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Finding the Fourth Proportional to 272,662.84, 376,177.31 and 157,878.82

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Solution

The fourth proportional to 272,662.84, 376,177.31 and 157,878.82 is: 217,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,662.84 : 376,177.31 = 157,878.82 : x
  2. Step 2: Convert to fraction form
    272,662.84/376,177.31 = 157,878.82/x
  3. Step 3: Cross multiply
    272,662.84x = 376,177.31 × 157,878.82
  4. Step 4: Simplify right side
    272,662.84x = 59,390,427,143.29
  5. Step 5: Solve for x
    x = 59,390,427,143.29/272,662.84
  6. Step 6: Final answer
    x = 217,816.36

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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.