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Finding the Fourth Proportional to 442,495.88, 610,638.60 and 251,496.68

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Solution

The fourth proportional to 442,495.88, 610,638.60 and 251,496.68 is: 347,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,495.88 : 610,638.60 = 251,496.68 : x
  2. Step 2: Convert to fraction form
    442,495.88/610,638.60 = 251,496.68/x
  3. Step 3: Cross multiply
    442,495.88x = 610,638.60 × 251,496.68
  4. Step 4: Simplify right side
    442,495.88x = 153,573,580,579.85
  5. Step 5: Solve for x
    x = 153,573,580,579.85/442,495.88
  6. Step 6: Final answer
    x = 347,062.17

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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.