Home / 429,249.18-643,873.77-163,009.73

Finding the Fourth Proportional to 429,249.18, 643,873.77 and 163,009.73

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Solution

The fourth proportional to 429,249.18, 643,873.77 and 163,009.73 is: 244,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,249.18 : 643,873.77 = 163,009.73 : x
  2. Step 2: Convert to fraction form
    429,249.18/643,873.77 = 163,009.73/x
  3. Step 3: Cross multiply
    429,249.18x = 643,873.77 × 163,009.73
  4. Step 4: Simplify right side
    429,249.18x = 104,957,689,401.78
  5. Step 5: Solve for x
    x = 104,957,689,401.78/429,249.18
  6. Step 6: Final answer
    x = 244,514.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.