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Finding the Fourth Proportional to 304,791.32, 420,817.53 and 190,244.45

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Solution

The fourth proportional to 304,791.32, 420,817.53 and 190,244.45 is: 262,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,791.32 : 420,817.53 = 190,244.45 : x
  2. Step 2: Convert to fraction form
    304,791.32/420,817.53 = 190,244.45/x
  3. Step 3: Cross multiply
    304,791.32x = 420,817.53 × 190,244.45
  4. Step 4: Simplify right side
    304,791.32x = 80,058,197,441.12
  5. Step 5: Solve for x
    x = 80,058,197,441.12/304,791.32
  6. Step 6: Final answer
    x = 262,665.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.