Home / 403,493.30-605,531.55-225,811.70

Finding the Fourth Proportional to 403,493.30, 605,531.55 and 225,811.70

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Solution

The fourth proportional to 403,493.30, 605,531.55 and 225,811.70 is: 338,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,493.30 : 605,531.55 = 225,811.70 : x
  2. Step 2: Convert to fraction form
    403,493.30/605,531.55 = 225,811.70/x
  3. Step 3: Cross multiply
    403,493.30x = 605,531.55 × 225,811.70
  4. Step 4: Simplify right side
    403,493.30x = 136,736,108,709.14
  5. Step 5: Solve for x
    x = 136,736,108,709.14/403,493.30
  6. Step 6: Final answer
    x = 338,880.74

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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.