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Finding the Fourth Proportional to 215,766.54, 297,635.91 and 135,053.94

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Solution

The fourth proportional to 215,766.54, 297,635.91 and 135,053.94 is: 186,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,766.54 : 297,635.91 = 135,053.94 : x
  2. Step 2: Convert to fraction form
    215,766.54/297,635.91 = 135,053.94/x
  3. Step 3: Cross multiply
    215,766.54x = 297,635.91 × 135,053.94
  4. Step 4: Simplify right side
    215,766.54x = 40,196,902,330.99
  5. Step 5: Solve for x
    x = 40,196,902,330.99/215,766.54
  6. Step 6: Final answer
    x = 186,298.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.