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Finding the Fourth Proportional to 204,045.70, 306,068.55 and 70,939.41

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Solution

The fourth proportional to 204,045.70, 306,068.55 and 70,939.41 is: 106,409.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,045.70 : 306,068.55 = 70,939.41 : x
  2. Step 2: Convert to fraction form
    204,045.70/306,068.55 = 70,939.41/x
  3. Step 3: Cross multiply
    204,045.70x = 306,068.55 × 70,939.41
  4. Step 4: Simplify right side
    204,045.70x = 21,712,322,356.56
  5. Step 5: Solve for x
    x = 21,712,322,356.56/204,045.70
  6. Step 6: Final answer
    x = 106,409.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.