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Finding the Fourth Proportional to 536,840.43, 804,670.11 and 221,125.11

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Solution

The fourth proportional to 536,840.43, 804,670.11 and 221,125.11 is: 331,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,840.43 : 804,670.11 = 221,125.11 : x
  2. Step 2: Convert to fraction form
    536,840.43/804,670.11 = 221,125.11/x
  3. Step 3: Cross multiply
    536,840.43x = 804,670.11 × 221,125.11
  4. Step 4: Simplify right side
    536,840.43x = 177,932,766,587.46
  5. Step 5: Solve for x
    x = 177,932,766,587.46/536,840.43
  6. Step 6: Final answer
    x = 331,444.42

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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.