Home / 252,416.28-348,328.89-139,239.03

Finding the Fourth Proportional to 252,416.28, 348,328.89 and 139,239.03

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Solution

The fourth proportional to 252,416.28, 348,328.89 and 139,239.03 is: 192,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,416.28 : 348,328.89 = 139,239.03 : x
  2. Step 2: Convert to fraction form
    252,416.28/348,328.89 = 139,239.03/x
  3. Step 3: Cross multiply
    252,416.28x = 348,328.89 × 139,239.03
  4. Step 4: Simplify right side
    252,416.28x = 48,500,976,764.58
  5. Step 5: Solve for x
    x = 48,500,976,764.58/252,416.28
  6. Step 6: Final answer
    x = 192,146.79

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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.