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Finding the Fourth Proportional to 143,383.52, 215,075.63 and 43,544.48

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Solution

The fourth proportional to 143,383.52, 215,075.63 and 43,544.48 is: 65,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,383.52 : 215,075.63 = 43,544.48 : x
  2. Step 2: Convert to fraction form
    143,383.52/215,075.63 = 43,544.48/x
  3. Step 3: Cross multiply
    143,383.52x = 215,075.63 × 43,544.48
  4. Step 4: Simplify right side
    143,383.52x = 9,365,355,502.51
  5. Step 5: Solve for x
    x = 9,365,355,502.51/143,383.52
  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.