Home / 211,002.58-317,984.98-189,963.64

Finding the Fourth Proportional to 211,002.58, 317,984.98 and 189,963.64

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Solution

The fourth proportional to 211,002.58, 317,984.98 and 189,963.64 is: 286,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,002.58 : 317,984.98 = 189,963.64 : x
  2. Step 2: Convert to fraction form
    211,002.58/317,984.98 = 189,963.64/x
  3. Step 3: Cross multiply
    211,002.58x = 317,984.98 × 189,963.64
  4. Step 4: Simplify right side
    211,002.58x = 60,405,584,266.13
  5. Step 5: Solve for x
    x = 60,405,584,266.13/211,002.58
  6. Step 6: Final answer
    x = 286,278.89

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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.