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Finding the Fourth Proportional to 403,804.70, 557,274.87 and 222,516.32

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Solution

The fourth proportional to 403,804.70, 557,274.87 and 222,516.32 is: 307,085.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,804.70 : 557,274.87 = 222,516.32 : x
  2. Step 2: Convert to fraction form
    403,804.70/557,274.87 = 222,516.32/x
  3. Step 3: Cross multiply
    403,804.70x = 557,274.87 × 222,516.32
  4. Step 4: Simplify right side
    403,804.70x = 124,002,753,300.88
  5. Step 5: Solve for x
    x = 124,002,753,300.88/403,804.70
  6. Step 6: Final answer
    x = 307,085.96

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1.5x scale

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.