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Finding the Fourth Proportional to 274,675.72, 379,009.92 and 153,822.12

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Solution

The fourth proportional to 274,675.72, 379,009.92 and 153,822.12 is: 212,250.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,675.72 : 379,009.92 = 153,822.12 : x
  2. Step 2: Convert to fraction form
    274,675.72/379,009.92 = 153,822.12/x
  3. Step 3: Cross multiply
    274,675.72x = 379,009.92 × 153,822.12
  4. Step 4: Simplify right side
    274,675.72x = 58,300,109,395.43
  5. Step 5: Solve for x
    x = 58,300,109,395.43/274,675.72
  6. Step 6: Final answer
    x = 212,250.68

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1.5x scale

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.