Home / 290,116.20-434,591.10-195,637.80

Finding the Fourth Proportional to 290,116.20, 434,591.10 and 195,637.80

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Solution

The fourth proportional to 290,116.20, 434,591.10 and 195,637.80 is: 293,063.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,116.20 : 434,591.10 = 195,637.80 : x
  2. Step 2: Convert to fraction form
    290,116.20/434,591.10 = 195,637.80/x
  3. Step 3: Cross multiply
    290,116.20x = 434,591.10 × 195,637.80
  4. Step 4: Simplify right side
    290,116.20x = 85,022,446,703.58
  5. Step 5: Solve for x
    x = 85,022,446,703.58/290,116.20
  6. Step 6: Final answer
    x = 293,063.42

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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.