Home / 203,051.12-304,243.77-143,780.39

Finding the Fourth Proportional to 203,051.12, 304,243.77 and 143,780.39

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Solution

The fourth proportional to 203,051.12, 304,243.77 and 143,780.39 is: 215,434.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,051.12 : 304,243.77 = 143,780.39 : x
  2. Step 2: Convert to fraction form
    203,051.12/304,243.77 = 143,780.39/x
  3. Step 3: Cross multiply
    203,051.12x = 304,243.77 × 143,780.39
  4. Step 4: Simplify right side
    203,051.12x = 43,744,286,384.45
  5. Step 5: Solve for x
    x = 43,744,286,384.45/203,051.12
  6. Step 6: Final answer
    x = 215,434.84

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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.