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Finding the Fourth Proportional to 247,269.51, 341,156.59 and 138,362.56

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Solution

The fourth proportional to 247,269.51, 341,156.59 and 138,362.56 is: 190,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,269.51 : 341,156.59 = 138,362.56 : x
  2. Step 2: Convert to fraction form
    247,269.51/341,156.59 = 138,362.56/x
  3. Step 3: Cross multiply
    247,269.51x = 341,156.59 × 138,362.56
  4. Step 4: Simplify right side
    247,269.51x = 47,203,297,954.47
  5. Step 5: Solve for x
    x = 47,203,297,954.47/247,269.51
  6. Step 6: Final answer
    x = 190,898.17

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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.