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Finding the Fourth Proportional to 371,972.88, 557,965.64 and 161,610.88

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Solution

The fourth proportional to 371,972.88, 557,965.64 and 161,610.88 is: 242,419.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,972.88 : 557,965.64 = 161,610.88 : x
  2. Step 2: Convert to fraction form
    371,972.88/557,965.64 = 161,610.88/x
  3. Step 3: Cross multiply
    371,972.88x = 557,965.64 × 161,610.88
  4. Step 4: Simplify right side
    371,972.88x = 90,173,318,090.16
  5. Step 5: Solve for x
    x = 90,173,318,090.16/371,972.88
  6. Step 6: Final answer
    x = 242,419.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.