Home / 403,916.10-557,436.27-222,660.28

Finding the Fourth Proportional to 403,916.10, 557,436.27 and 222,660.28

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Solution

The fourth proportional to 403,916.10, 557,436.27 and 222,660.28 is: 307,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,916.10 : 557,436.27 = 222,660.28 : x
  2. Step 2: Convert to fraction form
    403,916.10/557,436.27 = 222,660.28/x
  3. Step 3: Cross multiply
    403,916.10x = 557,436.27 × 222,660.28
  4. Step 4: Simplify right side
    403,916.10x = 124,118,915,960.36
  5. Step 5: Solve for x
    x = 124,118,915,960.36/403,916.10
  6. Step 6: Final answer
    x = 307,288.86

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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.