Home / 461,197.20-691,565.40-211,597.20

Finding the Fourth Proportional to 461,197.20, 691,565.40 and 211,597.20

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Solution

The fourth proportional to 461,197.20, 691,565.40 and 211,597.20 is: 317,290.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,197.20 : 691,565.40 = 211,597.20 : x
  2. Step 2: Convert to fraction form
    461,197.20/691,565.40 = 211,597.20/x
  3. Step 3: Cross multiply
    461,197.20x = 691,565.40 × 211,597.20
  4. Step 4: Simplify right side
    461,197.20x = 146,333,302,256.88
  5. Step 5: Solve for x
    x = 146,333,302,256.88/461,197.20
  6. Step 6: Final answer
    x = 317,290.09

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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.