Home / 429,272.07-643,908.11-148,789.32

Finding the Fourth Proportional to 429,272.07, 643,908.11 and 148,789.32

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Solution

The fourth proportional to 429,272.07, 643,908.11 and 148,789.32 is: 223,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,272.07 : 643,908.11 = 148,789.32 : x
  2. Step 2: Convert to fraction form
    429,272.07/643,908.11 = 148,789.32/x
  3. Step 3: Cross multiply
    429,272.07x = 643,908.11 × 148,789.32
  4. Step 4: Simplify right side
    429,272.07x = 95,806,649,085.44
  5. Step 5: Solve for x
    x = 95,806,649,085.44/429,272.07
  6. Step 6: Final answer
    x = 223,183.98

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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.