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Finding the Fourth Proportional to 230,516.60, 318,137.10 and 173,838.20

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Solution

The fourth proportional to 230,516.60, 318,137.10 and 173,838.20 is: 239,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,516.60 : 318,137.10 = 173,838.20 : x
  2. Step 2: Convert to fraction form
    230,516.60/318,137.10 = 173,838.20/x
  3. Step 3: Cross multiply
    230,516.60x = 318,137.10 × 173,838.20
  4. Step 4: Simplify right side
    230,516.60x = 55,304,380,817.22
  5. Step 5: Solve for x
    x = 55,304,380,817.22/230,516.60
  6. Step 6: Final answer
    x = 239,914.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.