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Finding the Fourth Proportional to 225,587.86, 311,302.10 and 134,890.34

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Solution

The fourth proportional to 225,587.86, 311,302.10 and 134,890.34 is: 186,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,587.86 : 311,302.10 = 134,890.34 : x
  2. Step 2: Convert to fraction form
    225,587.86/311,302.10 = 134,890.34/x
  3. Step 3: Cross multiply
    225,587.86x = 311,302.10 × 134,890.34
  4. Step 4: Simplify right side
    225,587.86x = 41,991,644,892.43
  5. Step 5: Solve for x
    x = 41,991,644,892.43/225,587.86
  6. Step 6: Final answer
    x = 186,143.20

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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.