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Finding the Fourth Proportional to 442,431.81, 610,607.73 and 251,473.90

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Solution

The fourth proportional to 442,431.81, 610,607.73 and 251,473.90 is: 347,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,431.81 : 610,607.73 = 251,473.90 : x
  2. Step 2: Convert to fraction form
    442,431.81/610,607.73 = 251,473.90/x
  3. Step 3: Cross multiply
    442,431.81x = 610,607.73 × 251,473.90
  4. Step 4: Simplify right side
    442,431.81x = 153,551,907,233.25
  5. Step 5: Solve for x
    x = 153,551,907,233.25/442,431.81
  6. Step 6: Final answer
    x = 347,063.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.