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Finding the Fourth Proportional to 442,722.78, 610,954.58 and 251,736.15

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Solution

The fourth proportional to 442,722.78, 610,954.58 and 251,736.15 is: 347,394.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,722.78 : 610,954.58 = 251,736.15 : x
  2. Step 2: Convert to fraction form
    442,722.78/610,954.58 = 251,736.15/x
  3. Step 3: Cross multiply
    442,722.78x = 610,954.58 × 251,736.15
  4. Step 4: Simplify right side
    442,722.78x = 153,799,356,714.49
  5. Step 5: Solve for x
    x = 153,799,356,714.49/442,722.78
  6. Step 6: Final answer
    x = 347,394.27

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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.