Home / 211,785.14-317,255.88-154,978.73

Finding the Fourth Proportional to 211,785.14, 317,255.88 and 154,978.73

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Solution

The fourth proportional to 211,785.14, 317,255.88 and 154,978.73 is: 232,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,785.14 : 317,255.88 = 154,978.73 : x
  2. Step 2: Convert to fraction form
    211,785.14/317,255.88 = 154,978.73/x
  3. Step 3: Cross multiply
    211,785.14x = 317,255.88 × 154,978.73
  4. Step 4: Simplify right side
    211,785.14x = 49,167,913,367.43
  5. Step 5: Solve for x
    x = 49,167,913,367.43/211,785.14
  6. Step 6: Final answer
    x = 232,159.41

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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.