Home / 403,228.53-556,450.98-221,936.57

Finding the Fourth Proportional to 403,228.53, 556,450.98 and 221,936.57

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Solution

The fourth proportional to 403,228.53, 556,450.98 and 221,936.57 is: 306,270.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,228.53 : 556,450.98 = 221,936.57 : x
  2. Step 2: Convert to fraction form
    403,228.53/556,450.98 = 221,936.57/x
  3. Step 3: Cross multiply
    403,228.53x = 556,450.98 × 221,936.57
  4. Step 4: Simplify right side
    403,228.53x = 123,496,823,265.47
  5. Step 5: Solve for x
    x = 123,496,823,265.47/403,228.53
  6. Step 6: Final answer
    x = 306,270.05

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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.