Home / 429,769.50-643,768.31-251,736.76

Finding the Fourth Proportional to 429,769.50, 643,768.31 and 251,736.76

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Solution

The fourth proportional to 429,769.50, 643,768.31 and 251,736.76 is: 377,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,769.50 : 643,768.31 = 251,736.76 : x
  2. Step 2: Convert to fraction form
    429,769.50/643,768.31 = 251,736.76/x
  3. Step 3: Cross multiply
    429,769.50x = 643,768.31 × 251,736.76
  4. Step 4: Simplify right side
    429,769.50x = 162,060,148,568.11
  5. Step 5: Solve for x
    x = 162,060,148,568.11/429,769.50
  6. Step 6: Final answer
    x = 377,086.21

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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.