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Finding the Fourth Proportional to 396,950.80, 596,117.40 and 210,326.80

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Solution

The fourth proportional to 396,950.80, 596,117.40 and 210,326.80 is: 315,856.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,950.80 : 596,117.40 = 210,326.80 : x
  2. Step 2: Convert to fraction form
    396,950.80/596,117.40 = 210,326.80/x
  3. Step 3: Cross multiply
    396,950.80x = 596,117.40 × 210,326.80
  4. Step 4: Simplify right side
    396,950.80x = 125,379,465,166.32
  5. Step 5: Solve for x
    x = 125,379,465,166.32/396,950.80
  6. Step 6: Final answer
    x = 315,856.44

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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.