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Finding the Fourth Proportional to 286,486.86, 395,328.72 and 165,635.91

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Solution

The fourth proportional to 286,486.86, 395,328.72 and 165,635.91 is: 228,564.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,486.86 : 395,328.72 = 165,635.91 : x
  2. Step 2: Convert to fraction form
    286,486.86/395,328.72 = 165,635.91/x
  3. Step 3: Cross multiply
    286,486.86x = 395,328.72 × 165,635.91
  4. Step 4: Simplify right side
    286,486.86x = 65,480,632,286.34
  5. Step 5: Solve for x
    x = 65,480,632,286.34/286,486.86
  6. Step 6: Final answer
    x = 228,564.17

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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.