Home / 403,253.24-556,491.48-221,983.40

Finding the Fourth Proportional to 403,253.24, 556,491.48 and 221,983.40

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Solution

The fourth proportional to 403,253.24, 556,491.48 and 221,983.40 is: 306,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,253.24 : 556,491.48 = 221,983.40 : x
  2. Step 2: Convert to fraction form
    403,253.24/556,491.48 = 221,983.40/x
  3. Step 3: Cross multiply
    403,253.24x = 556,491.48 × 221,983.40
  4. Step 4: Simplify right side
    403,253.24x = 123,531,870,801.43
  5. Step 5: Solve for x
    x = 123,531,870,801.43/403,253.24
  6. Step 6: Final answer
    x = 306,338.20

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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.