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Finding the Fourth Proportional to 203,541.36, 305,237.16 and 70,387.44

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Solution

The fourth proportional to 203,541.36, 305,237.16 and 70,387.44 is: 105,555.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,541.36 : 305,237.16 = 70,387.44 : x
  2. Step 2: Convert to fraction form
    203,541.36/305,237.16 = 70,387.44/x
  3. Step 3: Cross multiply
    203,541.36x = 305,237.16 × 70,387.44
  4. Step 4: Simplify right side
    203,541.36x = 21,484,862,285.27
  5. Step 5: Solve for x
    x = 21,484,862,285.27/203,541.36
  6. Step 6: Final answer
    x = 105,555.27

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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.