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Finding the Fourth Proportional to 407,191.34, 561,927.44 and 225,915.17

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Solution

The fourth proportional to 407,191.34, 561,927.44 and 225,915.17 is: 311,764.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,191.34 : 561,927.44 = 225,915.17 : x
  2. Step 2: Convert to fraction form
    407,191.34/561,927.44 = 225,915.17/x
  3. Step 3: Cross multiply
    407,191.34x = 561,927.44 × 225,915.17
  4. Step 4: Simplify right side
    407,191.34x = 126,947,930,890.42
  5. Step 5: Solve for x
    x = 126,947,930,890.42/407,191.34
  6. Step 6: Final answer
    x = 311,764.81

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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.