Home / 274,165.31-378,345.98-153,306.83

Finding the Fourth Proportional to 274,165.31, 378,345.98 and 153,306.83

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Solution

The fourth proportional to 274,165.31, 378,345.98 and 153,306.83 is: 211,562.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,165.31 : 378,345.98 = 153,306.83 : x
  2. Step 2: Convert to fraction form
    274,165.31/378,345.98 = 153,306.83/x
  3. Step 3: Cross multiply
    274,165.31x = 378,345.98 × 153,306.83
  4. Step 4: Simplify right side
    274,165.31x = 58,003,022,837.04
  5. Step 5: Solve for x
    x = 58,003,022,837.04/274,165.31
  6. Step 6: Final answer
    x = 211,562.22

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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.