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Finding the Fourth Proportional to 173,828.40, 260,742.60 and 120,375.60

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Solution

The fourth proportional to 173,828.40, 260,742.60 and 120,375.60 is: 180,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,828.40 : 260,742.60 = 120,375.60 : x
  2. Step 2: Convert to fraction form
    173,828.40/260,742.60 = 120,375.60/x
  3. Step 3: Cross multiply
    173,828.40x = 260,742.60 × 120,375.60
  4. Step 4: Simplify right side
    173,828.40x = 31,387,046,920.56
  5. Step 5: Solve for x
    x = 31,387,046,920.56/173,828.40
  6. Step 6: Final answer
    x = 180,563.40

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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.