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Finding the Fourth Proportional to 274,295.97, 378,510.66 and 153,416.34

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Solution

The fourth proportional to 274,295.97, 378,510.66 and 153,416.34 is: 211,704.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,295.97 : 378,510.66 = 153,416.34 : x
  2. Step 2: Convert to fraction form
    274,295.97/378,510.66 = 153,416.34/x
  3. Step 3: Cross multiply
    274,295.97x = 378,510.66 × 153,416.34
  4. Step 4: Simplify right side
    274,295.97x = 58,069,720,108.18
  5. Step 5: Solve for x
    x = 58,069,720,108.18/274,295.97
  6. Step 6: Final answer
    x = 211,704.61

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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.