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Finding the Fourth Proportional to 173,205.60, 259,808.40 and 113,719.20

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Solution

The fourth proportional to 173,205.60, 259,808.40 and 113,719.20 is: 170,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,205.60 : 259,808.40 = 113,719.20 : x
  2. Step 2: Convert to fraction form
    173,205.60/259,808.40 = 113,719.20/x
  3. Step 3: Cross multiply
    173,205.60x = 259,808.40 × 113,719.20
  4. Step 4: Simplify right side
    173,205.60x = 29,545,203,401.28
  5. Step 5: Solve for x
    x = 29,545,203,401.28/173,205.60
  6. Step 6: Final answer
    x = 170,578.80

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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.