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Finding the Fourth Proportional to 403,965.84, 605,964.08 and 151,219.72

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Solution

The fourth proportional to 403,965.84, 605,964.08 and 151,219.72 is: 226,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,965.84 : 605,964.08 = 151,219.72 : x
  2. Step 2: Convert to fraction form
    403,965.84/605,964.08 = 151,219.72/x
  3. Step 3: Cross multiply
    403,965.84x = 605,964.08 × 151,219.72
  4. Step 4: Simplify right side
    403,965.84x = 91,633,717,751.56
  5. Step 5: Solve for x
    x = 91,633,717,751.56/403,965.84
  6. Step 6: Final answer
    x = 226,835.32

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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.