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Finding the Fourth Proportional to 203,203.40, 304,805.10 and 189,379.40

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Solution

The fourth proportional to 203,203.40, 304,805.10 and 189,379.40 is: 284,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,203.40 : 304,805.10 = 189,379.40 : x
  2. Step 2: Convert to fraction form
    203,203.40/304,805.10 = 189,379.40/x
  3. Step 3: Cross multiply
    203,203.40x = 304,805.10 × 189,379.40
  4. Step 4: Simplify right side
    203,203.40x = 57,723,806,954.94
  5. Step 5: Solve for x
    x = 57,723,806,954.94/203,203.40
  6. Step 6: Final answer
    x = 284,069.10

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1.5x scale

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.