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Finding the Fourth Proportional to 317,969.39, 477,002.49 and 197,929.21

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Solution

The fourth proportional to 317,969.39, 477,002.49 and 197,929.21 is: 296,923.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,969.39 : 477,002.49 = 197,929.21 : x
  2. Step 2: Convert to fraction form
    317,969.39/477,002.49 = 197,929.21/x
  3. Step 3: Cross multiply
    317,969.39x = 477,002.49 × 197,929.21
  4. Step 4: Simplify right side
    317,969.39x = 94,412,726,013.73
  5. Step 5: Solve for x
    x = 94,412,726,013.73/317,969.39
  6. Step 6: Final answer
    x = 296,923.95

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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.