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Finding the Fourth Proportional to 396,946.80, 596,111.40 and 210,322.80

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Solution

The fourth proportional to 396,946.80, 596,111.40 and 210,322.80 is: 315,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,946.80 : 596,111.40 = 210,322.80 : x
  2. Step 2: Convert to fraction form
    396,946.80/596,111.40 = 210,322.80/x
  3. Step 3: Cross multiply
    396,946.80x = 596,111.40 × 210,322.80
  4. Step 4: Simplify right side
    396,946.80x = 125,375,818,759.92
  5. Step 5: Solve for x
    x = 125,375,818,759.92/396,946.80
  6. Step 6: Final answer
    x = 315,850.43

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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.