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Finding the Fourth Proportional to 272,736.32, 376,351.99 and 157,978.27

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Solution

The fourth proportional to 272,736.32, 376,351.99 and 157,978.27 is: 217,996.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,736.32 : 376,351.99 = 157,978.27 : x
  2. Step 2: Convert to fraction form
    272,736.32/376,351.99 = 157,978.27/x
  3. Step 3: Cross multiply
    272,736.32x = 376,351.99 × 157,978.27
  4. Step 4: Simplify right side
    272,736.32x = 59,455,434,249.77
  5. Step 5: Solve for x
    x = 59,455,434,249.77/272,736.32
  6. Step 6: Final answer
    x = 217,996.03

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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.