Home / 274,707.14-379,077.75-153,820.71

Finding the Fourth Proportional to 274,707.14, 379,077.75 and 153,820.71

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Solution

The fourth proportional to 274,707.14, 379,077.75 and 153,820.71 is: 212,262.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,707.14 : 379,077.75 = 153,820.71 : x
  2. Step 2: Convert to fraction form
    274,707.14/379,077.75 = 153,820.71/x
  3. Step 3: Cross multiply
    274,707.14x = 379,077.75 × 153,820.71
  4. Step 4: Simplify right side
    274,707.14x = 58,310,008,650.20
  5. Step 5: Solve for x
    x = 58,310,008,650.20/274,707.14
  6. Step 6: Final answer
    x = 212,262.45

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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.