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Finding the Fourth Proportional to 200,372.67, 276,539.87 and 115,490.34

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Solution

The fourth proportional to 200,372.67, 276,539.87 and 115,490.34 is: 159,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,372.67 : 276,539.87 = 115,490.34 : x
  2. Step 2: Convert to fraction form
    200,372.67/276,539.87 = 115,490.34/x
  3. Step 3: Cross multiply
    200,372.67x = 276,539.87 × 115,490.34
  4. Step 4: Simplify right side
    200,372.67x = 31,937,683,898.58
  5. Step 5: Solve for x
    x = 31,937,683,898.58/200,372.67
  6. Step 6: Final answer
    x = 159,391.42

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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.