Home / 406,616.20-561,142.66-225,311.17

Finding the Fourth Proportional to 406,616.20, 561,142.66 and 225,311.17

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Solution

The fourth proportional to 406,616.20, 561,142.66 and 225,311.17 is: 310,936.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,616.20 : 561,142.66 = 225,311.17 : x
  2. Step 2: Convert to fraction form
    406,616.20/561,142.66 = 225,311.17/x
  3. Step 3: Cross multiply
    406,616.20x = 561,142.66 × 225,311.17
  4. Step 4: Simplify right side
    406,616.20x = 126,431,709,403.67
  5. Step 5: Solve for x
    x = 126,431,709,403.67/406,616.20
  6. Step 6: Final answer
    x = 310,936.23

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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.