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Finding the Fourth Proportional to 406,600.81, 561,112.41 and 225,315.75

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Solution

The fourth proportional to 406,600.81, 561,112.41 and 225,315.75 is: 310,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,600.81 : 561,112.41 = 225,315.75 : x
  2. Step 2: Convert to fraction form
    406,600.81/561,112.41 = 225,315.75/x
  3. Step 3: Cross multiply
    406,600.81x = 561,112.41 × 225,315.75
  4. Step 4: Simplify right side
    406,600.81x = 126,427,464,864.43
  5. Step 5: Solve for x
    x = 126,427,464,864.43/406,600.81
  6. Step 6: Final answer
    x = 310,937.56

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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.