Home / 356,610.03-492,172.31-220,687.76

Finding the Fourth Proportional to 356,610.03, 492,172.31 and 220,687.76

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Solution

The fourth proportional to 356,610.03, 492,172.31 and 220,687.76 is: 304,580.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,610.03 : 492,172.31 = 220,687.76 : x
  2. Step 2: Convert to fraction form
    356,610.03/492,172.31 = 220,687.76/x
  3. Step 3: Cross multiply
    356,610.03x = 492,172.31 × 220,687.76
  4. Step 4: Simplify right side
    356,610.03x = 108,616,401,063.63
  5. Step 5: Solve for x
    x = 108,616,401,063.63/356,610.03
  6. Step 6: Final answer
    x = 304,580.33

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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.