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Finding the Fourth Proportional to 247,167.90, 340,834.95 and 211,476.06

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Solution

The fourth proportional to 247,167.90, 340,834.95 and 211,476.06 is: 291,617.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,167.90 : 340,834.95 = 211,476.06 : x
  2. Step 2: Convert to fraction form
    247,167.90/340,834.95 = 211,476.06/x
  3. Step 3: Cross multiply
    247,167.90x = 340,834.95 × 211,476.06
  4. Step 4: Simplify right side
    247,167.90x = 72,078,432,336.30
  5. Step 5: Solve for x
    x = 72,078,432,336.30/247,167.90
  6. Step 6: Final answer
    x = 291,617.29

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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.