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Finding the Fourth Proportional to 396,045.45, 546,539.74 and 214,757.12

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Solution

The fourth proportional to 396,045.45, 546,539.74 and 214,757.12 is: 296,363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,045.45 : 546,539.74 = 214,757.12 : x
  2. Step 2: Convert to fraction form
    396,045.45/546,539.74 = 214,757.12/x
  3. Step 3: Cross multiply
    396,045.45x = 546,539.74 × 214,757.12
  4. Step 4: Simplify right side
    396,045.45x = 117,373,301,357.41
  5. Step 5: Solve for x
    x = 117,373,301,357.41/396,045.45
  6. Step 6: Final answer
    x = 296,363.21

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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.