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Finding the Fourth Proportional to 173,391.60, 260,087.40 and 129,327.60

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Solution

The fourth proportional to 173,391.60, 260,087.40 and 129,327.60 is: 193,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,391.60 : 260,087.40 = 129,327.60 : x
  2. Step 2: Convert to fraction form
    173,391.60/260,087.40 = 129,327.60/x
  3. Step 3: Cross multiply
    173,391.60x = 260,087.40 × 129,327.60
  4. Step 4: Simplify right side
    173,391.60x = 33,636,479,232.24
  5. Step 5: Solve for x
    x = 33,636,479,232.24/173,391.60
  6. Step 6: Final answer
    x = 193,991.40

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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.