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Finding the Fourth Proportional to 143,976.84, 215,970.32 and 38,798.32

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Solution

The fourth proportional to 143,976.84, 215,970.32 and 38,798.32 is: 58,198.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,976.84 : 215,970.32 = 38,798.32 : x
  2. Step 2: Convert to fraction form
    143,976.84/215,970.32 = 38,798.32/x
  3. Step 3: Cross multiply
    143,976.84x = 215,970.32 × 38,798.32
  4. Step 4: Simplify right side
    143,976.84x = 8,379,285,585.86
  5. Step 5: Solve for x
    x = 8,379,285,585.86/143,976.84
  6. Step 6: Final answer
    x = 58,198.84

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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.