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Finding the Fourth Proportional to 275,234.51, 379,793.25 and 154,350.92

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Solution

The fourth proportional to 275,234.51, 379,793.25 and 154,350.92 is: 212,987.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,234.51 : 379,793.25 = 154,350.92 : x
  2. Step 2: Convert to fraction form
    275,234.51/379,793.25 = 154,350.92/x
  3. Step 3: Cross multiply
    275,234.51x = 379,793.25 × 154,350.92
  4. Step 4: Simplify right side
    275,234.51x = 58,621,437,547.29
  5. Step 5: Solve for x
    x = 58,621,437,547.29/275,234.51
  6. Step 6: Final answer
    x = 212,987.24

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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.