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Finding the Fourth Proportional to 403,984.70, 557,502.68 and 222,703.11

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Solution

The fourth proportional to 403,984.70, 557,502.68 and 222,703.11 is: 307,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,984.70 : 557,502.68 = 222,703.11 : x
  2. Step 2: Convert to fraction form
    403,984.70/557,502.68 = 222,703.11/x
  3. Step 3: Cross multiply
    403,984.70x = 557,502.68 × 222,703.11
  4. Step 4: Simplify right side
    403,984.70x = 124,157,582,481.59
  5. Step 5: Solve for x
    x = 124,157,582,481.59/403,984.70
  6. Step 6: Final answer
    x = 307,332.39

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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.