Home / 403,046.22-556,203.70-221,754.18

Finding the Fourth Proportional to 403,046.22, 556,203.70 and 221,754.18

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Solution

The fourth proportional to 403,046.22, 556,203.70 and 221,754.18 is: 306,020.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,046.22 : 556,203.70 = 221,754.18 : x
  2. Step 2: Convert to fraction form
    403,046.22/556,203.70 = 221,754.18/x
  3. Step 3: Cross multiply
    403,046.22x = 556,203.70 × 221,754.18
  4. Step 4: Simplify right side
    403,046.22x = 123,340,495,406.47
  5. Step 5: Solve for x
    x = 123,340,495,406.47/403,046.22
  6. Step 6: Final answer
    x = 306,020.72

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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.