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Finding the Fourth Proportional to 396,941.80, 596,103.90 and 210,317.80

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Solution

The fourth proportional to 396,941.80, 596,103.90 and 210,317.80 is: 315,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,941.80 : 596,103.90 = 210,317.80 : x
  2. Step 2: Convert to fraction form
    396,941.80/596,103.90 = 210,317.80/x
  3. Step 3: Cross multiply
    396,941.80x = 596,103.90 × 210,317.80
  4. Step 4: Simplify right side
    396,941.80x = 125,371,260,819.42
  5. Step 5: Solve for x
    x = 125,371,260,819.42/396,941.80
  6. Step 6: Final answer
    x = 315,842.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.