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Finding the Fourth Proportional to 406,660.91, 561,185.21 and 222,898.03

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Solution

The fourth proportional to 406,660.91, 561,185.21 and 222,898.03 is: 307,595.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,660.91 : 561,185.21 = 222,898.03 : x
  2. Step 2: Convert to fraction form
    406,660.91/561,185.21 = 222,898.03/x
  3. Step 3: Cross multiply
    406,660.91x = 561,185.21 × 222,898.03
  4. Step 4: Simplify right side
    406,660.91x = 125,087,076,928.42
  5. Step 5: Solve for x
    x = 125,087,076,928.42/406,660.91
  6. Step 6: Final answer
    x = 307,595.53

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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.