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Finding the Fourth Proportional to 173,175.60, 259,698.60 and 120,428.40

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Solution

The fourth proportional to 173,175.60, 259,698.60 and 120,428.40 is: 180,597.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,175.60 : 259,698.60 = 120,428.40 : x
  2. Step 2: Convert to fraction form
    173,175.60/259,698.60 = 120,428.40/x
  3. Step 3: Cross multiply
    173,175.60x = 259,698.60 × 120,428.40
  4. Step 4: Simplify right side
    173,175.60x = 31,275,086,880.24
  5. Step 5: Solve for x
    x = 31,275,086,880.24/173,175.60
  6. Step 6: Final answer
    x = 180,597.54

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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.