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Finding the Fourth Proportional to 199,570.73, 299,197.13 and 115,235.15

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Solution

The fourth proportional to 199,570.73, 299,197.13 and 115,235.15 is: 172,760.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,570.73 : 299,197.13 = 115,235.15 : x
  2. Step 2: Convert to fraction form
    199,570.73/299,197.13 = 115,235.15/x
  3. Step 3: Cross multiply
    199,570.73x = 299,197.13 × 115,235.15
  4. Step 4: Simplify right side
    199,570.73x = 34,478,024,082.96
  5. Step 5: Solve for x
    x = 34,478,024,082.96/199,570.73
  6. Step 6: Final answer
    x = 172,760.93

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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.