Home / 403,129.27-556,304.43-221,824.23

Finding the Fourth Proportional to 403,129.27, 556,304.43 and 221,824.23

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Solution

The fourth proportional to 403,129.27, 556,304.43 and 221,824.23 is: 306,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,129.27 : 556,304.43 = 221,824.23 : x
  2. Step 2: Convert to fraction form
    403,129.27/556,304.43 = 221,824.23/x
  3. Step 3: Cross multiply
    403,129.27x = 556,304.43 × 221,824.23
  4. Step 4: Simplify right side
    403,129.27x = 123,401,801,830.34
  5. Step 5: Solve for x
    x = 123,401,801,830.34/403,129.27
  6. Step 6: Final answer
    x = 306,109.76

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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.