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Finding the Fourth Proportional to 272,859.44, 376,555.50 and 158,138.51

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Solution

The fourth proportional to 272,859.44, 376,555.50 and 158,138.51 is: 218,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,859.44 : 376,555.50 = 158,138.51 : x
  2. Step 2: Convert to fraction form
    272,859.44/376,555.50 = 158,138.51/x
  3. Step 3: Cross multiply
    272,859.44x = 376,555.50 × 158,138.51
  4. Step 4: Simplify right side
    272,859.44x = 59,547,923,819.53
  5. Step 5: Solve for x
    x = 59,547,923,819.53/272,859.44
  6. Step 6: Final answer
    x = 218,236.63

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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.