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Finding the Fourth Proportional to 406,682.60, 561,222.02 and 225,406.22

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Solution

The fourth proportional to 406,682.60, 561,222.02 and 225,406.22 is: 311,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,682.60 : 561,222.02 = 225,406.22 : x
  2. Step 2: Convert to fraction form
    406,682.60/561,222.02 = 225,406.22/x
  3. Step 3: Cross multiply
    406,682.60x = 561,222.02 × 225,406.22
  4. Step 4: Simplify right side
    406,682.60x = 126,502,930,175.82
  5. Step 5: Solve for x
    x = 126,502,930,175.82/406,682.60
  6. Step 6: Final answer
    x = 311,060.60

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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.