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Finding the Fourth Proportional to 253,026.64, 349,199 and 139,871.26

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Solution

The fourth proportional to 253,026.64, 349,199 and 139,871.26 is: 193,034.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,026.64 : 349,199 = 139,871.26 : x
  2. Step 2: Convert to fraction form
    253,026.64/349,199 = 139,871.26/x
  3. Step 3: Cross multiply
    253,026.64x = 349,199 × 139,871.26
  4. Step 4: Simplify right side
    253,026.64x = 48,842,904,120.74
  5. Step 5: Solve for x
    x = 48,842,904,120.74/253,026.64
  6. Step 6: Final answer
    x = 193,034.63

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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.