Home / 356,114.98-491,444.85-220,145.55

Finding the Fourth Proportional to 356,114.98, 491,444.85 and 220,145.55

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Solution

The fourth proportional to 356,114.98, 491,444.85 and 220,145.55 is: 303,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,114.98 : 491,444.85 = 220,145.55 : x
  2. Step 2: Convert to fraction form
    356,114.98/491,444.85 = 220,145.55/x
  3. Step 3: Cross multiply
    356,114.98x = 491,444.85 × 220,145.55
  4. Step 4: Simplify right side
    356,114.98x = 108,189,396,797.92
  5. Step 5: Solve for x
    x = 108,189,396,797.92/356,114.98
  6. Step 6: Final answer
    x = 303,804.68

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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.