Home / 252,856.60-348,941-139,679.34

Finding the Fourth Proportional to 252,856.60, 348,941 and 139,679.34

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Solution

The fourth proportional to 252,856.60, 348,941 and 139,679.34 is: 192,756.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,856.60 : 348,941 = 139,679.34 : x
  2. Step 2: Convert to fraction form
    252,856.60/348,941 = 139,679.34/x
  3. Step 3: Cross multiply
    252,856.60x = 348,941 × 139,679.34
  4. Step 4: Simplify right side
    252,856.60x = 48,739,848,578.94
  5. Step 5: Solve for x
    x = 48,739,848,578.94/252,856.60
  6. Step 6: Final answer
    x = 192,756.88

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1.5x scale

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.