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Finding the Fourth Proportional to 203,630.91, 304,947.84 and 143,511.63

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Solution

The fourth proportional to 203,630.91, 304,947.84 and 143,511.63 is: 214,916.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,630.91 : 304,947.84 = 143,511.63 : x
  2. Step 2: Convert to fraction form
    203,630.91/304,947.84 = 143,511.63/x
  3. Step 3: Cross multiply
    203,630.91x = 304,947.84 × 143,511.63
  4. Step 4: Simplify right side
    203,630.91x = 43,763,561,583.38
  5. Step 5: Solve for x
    x = 43,763,561,583.38/203,630.91
  6. Step 6: Final answer
    x = 214,916.10

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1.5x scale

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.