Home / 403,818.15-557,272.79-222,536.59

Finding the Fourth Proportional to 403,818.15, 557,272.79 and 222,536.59

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Solution

The fourth proportional to 403,818.15, 557,272.79 and 222,536.59 is: 307,102.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,818.15 : 557,272.79 = 222,536.59 : x
  2. Step 2: Convert to fraction form
    403,818.15/557,272.79 = 222,536.59/x
  3. Step 3: Cross multiply
    403,818.15x = 557,272.79 × 222,536.59
  4. Step 4: Simplify right side
    403,818.15x = 124,013,585,966.80
  5. Step 5: Solve for x
    x = 124,013,585,966.80/403,818.15
  6. Step 6: Final answer
    x = 307,102.55

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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.