Home / 286,540.05-395,402.13-165,689.16

Finding the Fourth Proportional to 286,540.05, 395,402.13 and 165,689.16

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Solution

The fourth proportional to 286,540.05, 395,402.13 and 165,689.16 is: 228,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,540.05 : 395,402.13 = 165,689.16 : x
  2. Step 2: Convert to fraction form
    286,540.05/395,402.13 = 165,689.16/x
  3. Step 3: Cross multiply
    286,540.05x = 395,402.13 × 165,689.16
  4. Step 4: Simplify right side
    286,540.05x = 65,513,846,781.91
  5. Step 5: Solve for x
    x = 65,513,846,781.91/286,540.05
  6. Step 6: Final answer
    x = 228,637.66

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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.