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Finding the Fourth Proportional to 213,487.44, 320,237.60 and 73,244

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Solution

The fourth proportional to 213,487.44, 320,237.60 and 73,244 is: 109,868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,487.44 : 320,237.60 = 73,244 : x
  2. Step 2: Convert to fraction form
    213,487.44/320,237.60 = 73,244/x
  3. Step 3: Cross multiply
    213,487.44x = 320,237.60 × 73,244
  4. Step 4: Simplify right side
    213,487.44x = 23,455,482,774.40
  5. Step 5: Solve for x
    x = 23,455,482,774.40/213,487.44
  6. Step 6: Final answer
    x = 109,868.21

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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.