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Finding the Fourth Proportional to 317,451.09, 475,996.17 and 245,378.49

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Solution

The fourth proportional to 317,451.09, 475,996.17 and 245,378.49 is: 367,928.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,451.09 : 475,996.17 = 245,378.49 : x
  2. Step 2: Convert to fraction form
    317,451.09/475,996.17 = 245,378.49/x
  3. Step 3: Cross multiply
    317,451.09x = 475,996.17 × 245,378.49
  4. Step 4: Simplify right side
    317,451.09x = 116,799,221,440.38
  5. Step 5: Solve for x
    x = 116,799,221,440.38/317,451.09
  6. Step 6: Final answer
    x = 367,928.24

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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.