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Finding the Fourth Proportional to 406,491.45, 560,912.81 and 225,158.39

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Solution

The fourth proportional to 406,491.45, 560,912.81 and 225,158.39 is: 310,693.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,491.45 : 560,912.81 = 225,158.39 : x
  2. Step 2: Convert to fraction form
    406,491.45/560,912.81 = 225,158.39/x
  3. Step 3: Cross multiply
    406,491.45x = 560,912.81 × 225,158.39
  4. Step 4: Simplify right side
    406,491.45x = 126,294,225,229.98
  5. Step 5: Solve for x
    x = 126,294,225,229.98/406,491.45
  6. Step 6: Final answer
    x = 310,693.44

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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.