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Finding the Fourth Proportional to 262,737.81, 394,071 and 102,702.39

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Solution

The fourth proportional to 262,737.81, 394,071 and 102,702.39 is: 154,039.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,737.81 : 394,071 = 102,702.39 : x
  2. Step 2: Convert to fraction form
    262,737.81/394,071 = 102,702.39/x
  3. Step 3: Cross multiply
    262,737.81x = 394,071 × 102,702.39
  4. Step 4: Simplify right side
    262,737.81x = 40,472,033,529.69
  5. Step 5: Solve for x
    x = 40,472,033,529.69/262,737.81
  6. Step 6: Final answer
    x = 154,039.62

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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.