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Finding the Fourth Proportional to 496,768.30, 745,249.65 and 212,458.30

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Solution

The fourth proportional to 496,768.30, 745,249.65 and 212,458.30 is: 318,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,768.30 : 745,249.65 = 212,458.30 : x
  2. Step 2: Convert to fraction form
    496,768.30/745,249.65 = 212,458.30/x
  3. Step 3: Cross multiply
    496,768.30x = 745,249.65 × 212,458.30
  4. Step 4: Simplify right side
    496,768.30x = 158,334,473,714.60
  5. Step 5: Solve for x
    x = 158,334,473,714.60/496,768.30
  6. Step 6: Final answer
    x = 318,729.02

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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.