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Finding the Fourth Proportional to 208,297.78, 310,617.64 and 206,403.29

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Solution

The fourth proportional to 208,297.78, 310,617.64 and 206,403.29 is: 307,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,297.78 : 310,617.64 = 206,403.29 : x
  2. Step 2: Convert to fraction form
    208,297.78/310,617.64 = 206,403.29/x
  3. Step 3: Cross multiply
    208,297.78x = 310,617.64 × 206,403.29
  4. Step 4: Simplify right side
    208,297.78x = 64,112,501,536.75
  5. Step 5: Solve for x
    x = 64,112,501,536.75/208,297.78
  6. Step 6: Final answer
    x = 307,792.54

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.