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Finding the Fourth Proportional to 406,901.50, 561,530.83 and 225,621.08

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Solution

The fourth proportional to 406,901.50, 561,530.83 and 225,621.08 is: 311,360.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,901.50 : 561,530.83 = 225,621.08 : x
  2. Step 2: Convert to fraction form
    406,901.50/561,530.83 = 225,621.08/x
  3. Step 3: Cross multiply
    406,901.50x = 561,530.83 × 225,621.08
  4. Step 4: Simplify right side
    406,901.50x = 126,693,192,317.90
  5. Step 5: Solve for x
    x = 126,693,192,317.90/406,901.50
  6. Step 6: Final answer
    x = 311,360.84

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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.