Home / 211,196.20-317,693.30-191,443.90

Finding the Fourth Proportional to 211,196.20, 317,693.30 and 191,443.90

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Solution

The fourth proportional to 211,196.20, 317,693.30 and 191,443.90 is: 287,980.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,196.20 : 317,693.30 = 191,443.90 : x
  2. Step 2: Convert to fraction form
    211,196.20/317,693.30 = 191,443.90/x
  3. Step 3: Cross multiply
    211,196.20x = 317,693.30 × 191,443.90
  4. Step 4: Simplify right side
    211,196.20x = 60,820,444,355.87
  5. Step 5: Solve for x
    x = 60,820,444,355.87/211,196.20
  6. Step 6: Final answer
    x = 287,980.77

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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.