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Finding the Fourth Proportional to 403,800.82, 605,130.22 and 223,965.48

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Solution

The fourth proportional to 403,800.82, 605,130.22 and 223,965.48 is: 335,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,800.82 : 605,130.22 = 223,965.48 : x
  2. Step 2: Convert to fraction form
    403,800.82/605,130.22 = 223,965.48/x
  3. Step 3: Cross multiply
    403,800.82x = 605,130.22 × 223,965.48
  4. Step 4: Simplify right side
    403,800.82x = 135,528,280,184.81
  5. Step 5: Solve for x
    x = 135,528,280,184.81/403,800.82
  6. Step 6: Final answer
    x = 335,631.51

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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.