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Finding the Fourth Proportional to 252,586.08, 348,568.04 and 139,408

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Solution

The fourth proportional to 252,586.08, 348,568.04 and 139,408 is: 192,382.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,586.08 : 348,568.04 = 139,408 : x
  2. Step 2: Convert to fraction form
    252,586.08/348,568.04 = 139,408/x
  3. Step 3: Cross multiply
    252,586.08x = 348,568.04 × 139,408
  4. Step 4: Simplify right side
    252,586.08x = 48,593,173,320.32
  5. Step 5: Solve for x
    x = 48,593,173,320.32/252,586.08
  6. Step 6: Final answer
    x = 192,382.63

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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.