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Finding the Third Proportional to 235,438 and 302,308

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Solution

The third proportional to 235,438 and 302,308 is: 388,170.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,438 : 302,308 = 302,308 : x
  2. Step 2: Convert to fraction form
    235,438/302,308 = 302,308/x
  3. Step 3: Cross multiply
    235,438x = 302,308 × 302,308
  4. Step 4: Simplify right side
    235,438x = 91,390,126,864
  5. Step 5: Solve for x
    x = 91,390,126,864/235,438
  6. Step 6: Final answer
    x = 388,170.67

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.