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Finding the Fourth Proportional to 371,554.40, 557,328.64 and 220,796.29

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Solution

The fourth proportional to 371,554.40, 557,328.64 and 220,796.29 is: 331,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,554.40 : 557,328.64 = 220,796.29 : x
  2. Step 2: Convert to fraction form
    371,554.40/557,328.64 = 220,796.29/x
  3. Step 3: Cross multiply
    371,554.40x = 557,328.64 × 220,796.29
  4. Step 4: Simplify right side
    371,554.40x = 123,056,098,451.88
  5. Step 5: Solve for x
    x = 123,056,098,451.88/371,554.40
  6. Step 6: Final answer
    x = 331,192.68

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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.