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Finding the Fourth Proportional to 343,925.73, 515,689.83 and 133,317.63

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Solution

The fourth proportional to 343,925.73, 515,689.83 and 133,317.63 is: 199,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,925.73 : 515,689.83 = 133,317.63 : x
  2. Step 2: Convert to fraction form
    343,925.73/515,689.83 = 133,317.63/x
  3. Step 3: Cross multiply
    343,925.73x = 515,689.83 × 133,317.63
  4. Step 4: Simplify right side
    343,925.73x = 68,750,545,950.70
  5. Step 5: Solve for x
    x = 68,750,545,950.70/343,925.73
  6. Step 6: Final answer
    x = 199,899.40

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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.