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Finding the Fourth Proportional to 403,007.20, 604,899.60 and 203,552.80

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Solution

The fourth proportional to 403,007.20, 604,899.60 and 203,552.80 is: 305,525.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,007.20 : 604,899.60 = 203,552.80 : x
  2. Step 2: Convert to fraction form
    403,007.20/604,899.60 = 203,552.80/x
  3. Step 3: Cross multiply
    403,007.20x = 604,899.60 × 203,552.80
  4. Step 4: Simplify right side
    403,007.20x = 123,129,007,298.88
  5. Step 5: Solve for x
    x = 123,129,007,298.88/403,007.20
  6. Step 6: Final answer
    x = 305,525.58

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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.