Home / 211,000.58-317,981.96-189,961.64

Finding the Fourth Proportional to 211,000.58, 317,981.96 and 189,961.64

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Solution

The fourth proportional to 211,000.58, 317,981.96 and 189,961.64 is: 286,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,000.58 : 317,981.96 = 189,961.64 : x
  2. Step 2: Convert to fraction form
    211,000.58/317,981.96 = 189,961.64/x
  3. Step 3: Cross multiply
    211,000.58x = 317,981.96 × 189,961.64
  4. Step 4: Simplify right side
    211,000.58x = 60,404,374,612.01
  5. Step 5: Solve for x
    x = 60,404,374,612.01/211,000.58
  6. Step 6: Final answer
    x = 286,275.87

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.