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Finding the Fourth Proportional to 442,305.85, 610,378.90 and 251,319.26

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Solution

The fourth proportional to 442,305.85, 610,378.90 and 251,319.26 is: 346,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,305.85 : 610,378.90 = 251,319.26 : x
  2. Step 2: Convert to fraction form
    442,305.85/610,378.90 = 251,319.26/x
  3. Step 3: Cross multiply
    442,305.85x = 610,378.90 × 251,319.26
  4. Step 4: Simplify right side
    442,305.85x = 153,399,973,467.61
  5. Step 5: Solve for x
    x = 153,399,973,467.61/442,305.85
  6. Step 6: Final answer
    x = 346,818.78

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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.