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Finding the Fourth Proportional to 371,355.74, 512,472.46 and 210,241.88

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Solution

The fourth proportional to 371,355.74, 512,472.46 and 210,241.88 is: 290,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,355.74 : 512,472.46 = 210,241.88 : x
  2. Step 2: Convert to fraction form
    371,355.74/512,472.46 = 210,241.88/x
  3. Step 3: Cross multiply
    371,355.74x = 512,472.46 × 210,241.88
  4. Step 4: Simplify right side
    371,355.74x = 107,743,173,438.63
  5. Step 5: Solve for x
    x = 107,743,173,438.63/371,355.74
  6. Step 6: Final answer
    x = 290,134.67

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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.