Home / 257,069.82-385,622.68-79,553.46

Finding the Fourth Proportional to 257,069.82, 385,622.68 and 79,553.46

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Solution

The fourth proportional to 257,069.82, 385,622.68 and 79,553.46 is: 119,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,069.82 : 385,622.68 = 79,553.46 : x
  2. Step 2: Convert to fraction form
    257,069.82/385,622.68 = 79,553.46/x
  3. Step 3: Cross multiply
    257,069.82x = 385,622.68 × 79,553.46
  4. Step 4: Simplify right side
    257,069.82x = 30,677,618,448.47
  5. Step 5: Solve for x
    x = 30,677,618,448.47/257,069.82
  6. Step 6: Final answer
    x = 119,335.74

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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.