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Finding the Fourth Proportional to 442,429.83, 610,553.30 and 251,438.31

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Solution

The fourth proportional to 442,429.83, 610,553.30 and 251,438.31 is: 346,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,429.83 : 610,553.30 = 251,438.31 : x
  2. Step 2: Convert to fraction form
    442,429.83/610,553.30 = 251,438.31/x
  3. Step 3: Cross multiply
    442,429.83x = 610,553.30 × 251,438.31
  4. Step 4: Simplify right side
    442,429.83x = 153,516,488,659.73
  5. Step 5: Solve for x
    x = 153,516,488,659.73/442,429.83
  6. Step 6: Final answer
    x = 346,984.94

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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.