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Finding the Fourth Proportional to 449,951.80, 674,935.70 and 134,412.60

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Solution

The fourth proportional to 449,951.80, 674,935.70 and 134,412.60 is: 201,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,951.80 : 674,935.70 = 134,412.60 : x
  2. Step 2: Convert to fraction form
    449,951.80/674,935.70 = 134,412.60/x
  3. Step 3: Cross multiply
    449,951.80x = 674,935.70 × 134,412.60
  4. Step 4: Simplify right side
    449,951.80x = 90,719,862,269.82
  5. Step 5: Solve for x
    x = 90,719,862,269.82/449,951.80
  6. Step 6: Final answer
    x = 201,621.29

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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.