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Finding the Fourth Proportional to 304,791.85, 420,818.22 and 190,244.95

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Solution

The fourth proportional to 304,791.85, 420,818.22 and 190,244.95 is: 262,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,791.85 : 420,818.22 = 190,244.95 : x
  2. Step 2: Convert to fraction form
    304,791.85/420,818.22 = 190,244.95/x
  3. Step 3: Cross multiply
    304,791.85x = 420,818.22 × 190,244.95
  4. Step 4: Simplify right side
    304,791.85x = 80,058,539,118.90
  5. Step 5: Solve for x
    x = 80,058,539,118.90/304,791.85
  6. Step 6: Final answer
    x = 262,666.28

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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.