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Finding the Fourth Proportional to 199,580.52, 299,211.72 and 115,244.94

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Solution

The fourth proportional to 199,580.52, 299,211.72 and 115,244.94 is: 172,775.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,580.52 : 299,211.72 = 115,244.94 : x
  2. Step 2: Convert to fraction form
    199,580.52/299,211.72 = 115,244.94/x
  3. Step 3: Cross multiply
    199,580.52x = 299,211.72 × 115,244.94
  4. Step 4: Simplify right side
    199,580.52x = 34,482,636,718.70
  5. Step 5: Solve for x
    x = 34,482,636,718.70/199,580.52
  6. Step 6: Final answer
    x = 172,775.56

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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.