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Finding the Fourth Proportional to 143,383.53, 215,075.64 and 43,544.48

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Solution

The fourth proportional to 143,383.53, 215,075.64 and 43,544.48 is: 65,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,383.53 : 215,075.64 = 43,544.48 : x
  2. Step 2: Convert to fraction form
    143,383.53/215,075.64 = 43,544.48/x
  3. Step 3: Cross multiply
    143,383.53x = 215,075.64 × 43,544.48
  4. Step 4: Simplify right side
    143,383.53x = 9,365,355,611.37
  5. Step 5: Solve for x
    x = 9,365,355,611.37/143,383.53
  6. Step 6: Final answer
    x = 65,316.82

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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.