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Finding the Fourth Proportional to 252,659.25, 348,669.77 and 139,489.29

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Solution

The fourth proportional to 252,659.25, 348,669.77 and 139,489.29 is: 192,495.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,659.25 : 348,669.77 = 139,489.29 : x
  2. Step 2: Convert to fraction form
    252,659.25/348,669.77 = 139,489.29/x
  3. Step 3: Cross multiply
    252,659.25x = 348,669.77 × 139,489.29
  4. Step 4: Simplify right side
    252,659.25x = 48,635,697,964.32
  5. Step 5: Solve for x
    x = 48,635,697,964.32/252,659.25
  6. Step 6: Final answer
    x = 192,495.22

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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.