Home / 354,066.37-531,320.84-143,704.31

Finding the Fourth Proportional to 354,066.37, 531,320.84 and 143,704.31

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Solution

The fourth proportional to 354,066.37, 531,320.84 and 143,704.31 is: 215,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,066.37 : 531,320.84 = 143,704.31 : x
  2. Step 2: Convert to fraction form
    354,066.37/531,320.84 = 143,704.31/x
  3. Step 3: Cross multiply
    354,066.37x = 531,320.84 × 143,704.31
  4. Step 4: Simplify right side
    354,066.37x = 76,353,093,013.26
  5. Step 5: Solve for x
    x = 76,353,093,013.26/354,066.37
  6. Step 6: Final answer
    x = 215,646.27

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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.