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Finding the Fourth Proportional to 173,318.40, 259,804.80 and 79,660.80

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Solution

The fourth proportional to 173,318.40, 259,804.80 and 79,660.80 is: 119,411.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,318.40 : 259,804.80 = 79,660.80 : x
  2. Step 2: Convert to fraction form
    173,318.40/259,804.80 = 79,660.80/x
  3. Step 3: Cross multiply
    173,318.40x = 259,804.80 × 79,660.80
  4. Step 4: Simplify right side
    173,318.40x = 20,696,258,211.84
  5. Step 5: Solve for x
    x = 20,696,258,211.84/173,318.40
  6. Step 6: Final answer
    x = 119,411.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.