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Finding the Fourth Proportional to 396,118.53, 546,628.32 and 214,827.12

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Solution

The fourth proportional to 396,118.53, 546,628.32 and 214,827.12 is: 296,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,118.53 : 546,628.32 = 214,827.12 : x
  2. Step 2: Convert to fraction form
    396,118.53/546,628.32 = 214,827.12/x
  3. Step 3: Cross multiply
    396,118.53x = 546,628.32 × 214,827.12
  4. Step 4: Simplify right side
    396,118.53x = 117,430,587,696.04
  5. Step 5: Solve for x
    x = 117,430,587,696.04/396,118.53
  6. Step 6: Final answer
    x = 296,453.15

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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.