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Finding the Fourth Proportional to 252,498.99, 348,449.82 and 139,321.74

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Solution

The fourth proportional to 252,498.99, 348,449.82 and 139,321.74 is: 192,264.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,498.99 : 348,449.82 = 139,321.74 : x
  2. Step 2: Convert to fraction form
    252,498.99/348,449.82 = 139,321.74/x
  3. Step 3: Cross multiply
    252,498.99x = 348,449.82 × 139,321.74
  4. Step 4: Simplify right side
    252,498.99x = 48,546,635,225.09
  5. Step 5: Solve for x
    x = 48,546,635,225.09/252,498.99
  6. Step 6: Final answer
    x = 192,264.67

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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.