Home / 356,621.87-492,188.60-220,699.62

Finding the Fourth Proportional to 356,621.87, 492,188.60 and 220,699.62

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Solution

The fourth proportional to 356,621.87, 492,188.60 and 220,699.62 is: 304,596.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,621.87 : 492,188.60 = 220,699.62 : x
  2. Step 2: Convert to fraction form
    356,621.87/492,188.60 = 220,699.62/x
  3. Step 3: Cross multiply
    356,621.87x = 492,188.60 × 220,699.62
  4. Step 4: Simplify right side
    356,621.87x = 108,625,837,540.08
  5. Step 5: Solve for x
    x = 108,625,837,540.08/356,621.87
  6. Step 6: Final answer
    x = 304,596.68

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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.