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Finding the Fourth Proportional to 343,500.94, 515,329.17 and 133,199.02

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Solution

The fourth proportional to 343,500.94, 515,329.17 and 133,199.02 is: 199,828.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,500.94 : 515,329.17 = 133,199.02 : x
  2. Step 2: Convert to fraction form
    343,500.94/515,329.17 = 133,199.02/x
  3. Step 3: Cross multiply
    343,500.94x = 515,329.17 × 133,199.02
  4. Step 4: Simplify right side
    343,500.94x = 68,641,340,421.41
  5. Step 5: Solve for x
    x = 68,641,340,421.41/343,500.94
  6. Step 6: Final answer
    x = 199,828.68

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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.