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Finding the Fourth Proportional to 403,322.43, 605,179.44 and 253,633.20

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Solution

The fourth proportional to 403,322.43, 605,179.44 and 253,633.20 is: 380,572.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,322.43 : 605,179.44 = 253,633.20 : x
  2. Step 2: Convert to fraction form
    403,322.43/605,179.44 = 253,633.20/x
  3. Step 3: Cross multiply
    403,322.43x = 605,179.44 × 253,633.20
  4. Step 4: Simplify right side
    403,322.43x = 153,493,597,941.41
  5. Step 5: Solve for x
    x = 153,493,597,941.41/403,322.43
  6. Step 6: Final answer
    x = 380,572.93

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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.