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Finding the Fourth Proportional to 176,409.88, 243,450.30 and 100,982.68

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Solution

The fourth proportional to 176,409.88, 243,450.30 and 100,982.68 is: 139,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,409.88 : 243,450.30 = 100,982.68 : x
  2. Step 2: Convert to fraction form
    176,409.88/243,450.30 = 100,982.68/x
  3. Step 3: Cross multiply
    176,409.88x = 243,450.30 × 100,982.68
  4. Step 4: Simplify right side
    176,409.88x = 24,584,263,740.80
  5. Step 5: Solve for x
    x = 24,584,263,740.80/176,409.88
  6. Step 6: Final answer
    x = 139,358.77

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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.