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Finding the Fourth Proportional to 400,146.80, 599,553.74 and 281,568.98

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Solution

The fourth proportional to 400,146.80, 599,553.74 and 281,568.98 is: 421,884.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,146.80 : 599,553.74 = 281,568.98 : x
  2. Step 2: Convert to fraction form
    400,146.80/599,553.74 = 281,568.98/x
  3. Step 3: Cross multiply
    400,146.80x = 599,553.74 × 281,568.98
  4. Step 4: Simplify right side
    400,146.80x = 168,815,730,621.37
  5. Step 5: Solve for x
    x = 168,815,730,621.37/400,146.80
  6. Step 6: Final answer
    x = 421,884.50

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1.5x scale

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.