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Finding the Fourth Proportional to 311,502.39, 429,873.39 and 168,262.53

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Solution

The fourth proportional to 311,502.39, 429,873.39 and 168,262.53 is: 232,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,502.39 : 429,873.39 = 168,262.53 : x
  2. Step 2: Convert to fraction form
    311,502.39/429,873.39 = 168,262.53/x
  3. Step 3: Cross multiply
    311,502.39x = 429,873.39 × 168,262.53
  4. Step 4: Simplify right side
    311,502.39x = 72,331,584,181.08
  5. Step 5: Solve for x
    x = 72,331,584,181.08/311,502.39
  6. Step 6: Final answer
    x = 232,202.34

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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.