Home / 403,114.37-556,300.44-221,821.20

Finding the Fourth Proportional to 403,114.37, 556,300.44 and 221,821.20

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Solution

The fourth proportional to 403,114.37, 556,300.44 and 221,821.20 is: 306,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,114.37 : 556,300.44 = 221,821.20 : x
  2. Step 2: Convert to fraction form
    403,114.37/556,300.44 = 221,821.20/x
  3. Step 3: Cross multiply
    403,114.37x = 556,300.44 × 221,821.20
  4. Step 4: Simplify right side
    403,114.37x = 123,399,231,161.33
  5. Step 5: Solve for x
    x = 123,399,231,161.33/403,114.37
  6. Step 6: Final answer
    x = 306,114.70

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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.