Home / 274,669.08-379,054.13-153,809.30

Finding the Fourth Proportional to 274,669.08, 379,054.13 and 153,809.30

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Solution

The fourth proportional to 274,669.08, 379,054.13 and 153,809.30 is: 212,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,669.08 : 379,054.13 = 153,809.30 : x
  2. Step 2: Convert to fraction form
    274,669.08/379,054.13 = 153,809.30/x
  3. Step 3: Cross multiply
    274,669.08x = 379,054.13 × 153,809.30
  4. Step 4: Simplify right side
    274,669.08x = 58,302,047,733.09
  5. Step 5: Solve for x
    x = 58,302,047,733.09/274,669.08
  6. Step 6: Final answer
    x = 212,262.87

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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.