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Finding the Fourth Proportional to 399,173.04, 550,845 and 237,945

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Solution

The fourth proportional to 399,173.04, 550,845 and 237,945 is: 328,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,173.04 : 550,845 = 237,945 : x
  2. Step 2: Convert to fraction form
    399,173.04/550,845 = 237,945/x
  3. Step 3: Cross multiply
    399,173.04x = 550,845 × 237,945
  4. Step 4: Simplify right side
    399,173.04x = 131,070,813,525
  5. Step 5: Solve for x
    x = 131,070,813,525/399,173.04
  6. Step 6: Final answer
    x = 328,355.88

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1.5x scale

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.