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Finding the Fourth Proportional to 252,805.50, 348,871.59 and 139,635.54

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Solution

The fourth proportional to 252,805.50, 348,871.59 and 139,635.54 is: 192,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,805.50 : 348,871.59 = 139,635.54 : x
  2. Step 2: Convert to fraction form
    252,805.50/348,871.59 = 139,635.54/x
  3. Step 3: Cross multiply
    252,805.50x = 348,871.59 × 139,635.54
  4. Step 4: Simplify right side
    252,805.50x = 48,714,872,860.31
  5. Step 5: Solve for x
    x = 48,714,872,860.31/252,805.50
  6. Step 6: Final answer
    x = 192,697.05

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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.