Home / 356,427.22-491,748.45-203,355.46

Finding the Fourth Proportional to 356,427.22, 491,748.45 and 203,355.46

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Solution

The fourth proportional to 356,427.22, 491,748.45 and 203,355.46 is: 280,561.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,427.22 : 491,748.45 = 203,355.46 : x
  2. Step 2: Convert to fraction form
    356,427.22/491,748.45 = 203,355.46/x
  3. Step 3: Cross multiply
    356,427.22x = 491,748.45 × 203,355.46
  4. Step 4: Simplify right side
    356,427.22x = 99,999,732,254.04
  5. Step 5: Solve for x
    x = 99,999,732,254.04/356,427.22
  6. Step 6: Final answer
    x = 280,561.43

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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.