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Finding the Fourth Proportional to 399,185.04, 550,861.56 and 237,957

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Solution

The fourth proportional to 399,185.04, 550,861.56 and 237,957 is: 328,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,185.04 : 550,861.56 = 237,957 : x
  2. Step 2: Convert to fraction form
    399,185.04/550,861.56 = 237,957/x
  3. Step 3: Cross multiply
    399,185.04x = 550,861.56 × 237,957
  4. Step 4: Simplify right side
    399,185.04x = 131,081,364,232.92
  5. Step 5: Solve for x
    x = 131,081,364,232.92/399,185.04
  6. Step 6: Final answer
    x = 328,372.44

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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.