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Finding the Fourth Proportional to 343,149.21, 514,792.53 and 118,517.85

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Solution

The fourth proportional to 343,149.21, 514,792.53 and 118,517.85 is: 177,800.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,149.21 : 514,792.53 = 118,517.85 : x
  2. Step 2: Convert to fraction form
    343,149.21/514,792.53 = 118,517.85/x
  3. Step 3: Cross multiply
    343,149.21x = 514,792.53 × 118,517.85
  4. Step 4: Simplify right side
    343,149.21x = 61,012,103,851.66
  5. Step 5: Solve for x
    x = 61,012,103,851.66/343,149.21
  6. Step 6: Final answer
    x = 177,800.51

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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.