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Finding the Fourth Proportional to 245,427.80, 367,623.30 and 203,955.80

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Solution

The fourth proportional to 245,427.80, 367,623.30 and 203,955.80 is: 305,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,427.80 : 367,623.30 = 203,955.80 : x
  2. Step 2: Convert to fraction form
    245,427.80/367,623.30 = 203,955.80/x
  3. Step 3: Cross multiply
    245,427.80x = 367,623.30 × 203,955.80
  4. Step 4: Simplify right side
    245,427.80x = 74,978,904,250.14
  5. Step 5: Solve for x
    x = 74,978,904,250.14/245,427.80
  6. Step 6: Final answer
    x = 305,502.90

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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.