Home / 403,157.22-556,357.06-221,869.10

Finding the Fourth Proportional to 403,157.22, 556,357.06 and 221,869.10

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Solution

The fourth proportional to 403,157.22, 556,357.06 and 221,869.10 is: 306,179.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,157.22 : 556,357.06 = 221,869.10 : x
  2. Step 2: Convert to fraction form
    403,157.22/556,357.06 = 221,869.10/x
  3. Step 3: Cross multiply
    403,157.22x = 556,357.06 × 221,869.10
  4. Step 4: Simplify right side
    403,157.22x = 123,438,440,180.85
  5. Step 5: Solve for x
    x = 123,438,440,180.85/403,157.22
  6. Step 6: Final answer
    x = 306,179.41

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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.