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Finding the Fourth Proportional to 173,679.20, 259,741.20 and 145,685.60

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Solution

The fourth proportional to 173,679.20, 259,741.20 and 145,685.60 is: 217,876.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,679.20 : 259,741.20 = 145,685.60 : x
  2. Step 2: Convert to fraction form
    173,679.20/259,741.20 = 145,685.60/x
  3. Step 3: Cross multiply
    173,679.20x = 259,741.20 × 145,685.60
  4. Step 4: Simplify right side
    173,679.20x = 37,840,552,566.72
  5. Step 5: Solve for x
    x = 37,840,552,566.72/173,679.20
  6. Step 6: Final answer
    x = 217,876.13

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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.