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Finding the Fourth Proportional to 286,676.07, 395,578.62 and 157,593.30

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Solution

The fourth proportional to 286,676.07, 395,578.62 and 157,593.30 is: 217,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,676.07 : 395,578.62 = 157,593.30 : x
  2. Step 2: Convert to fraction form
    286,676.07/395,578.62 = 157,593.30/x
  3. Step 3: Cross multiply
    286,676.07x = 395,578.62 × 157,593.30
  4. Step 4: Simplify right side
    286,676.07x = 62,340,540,135.25
  5. Step 5: Solve for x
    x = 62,340,540,135.25/286,676.07
  6. Step 6: Final answer
    x = 217,459.87

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1.5x scale

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.