Home / 211,667.70-317,590.40-131,772.48

Finding the Fourth Proportional to 211,667.70, 317,590.40 and 131,772.48

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Solution

The fourth proportional to 211,667.70, 317,590.40 and 131,772.48 is: 197,714.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,667.70 : 317,590.40 = 131,772.48 : x
  2. Step 2: Convert to fraction form
    211,667.70/317,590.40 = 131,772.48/x
  3. Step 3: Cross multiply
    211,667.70x = 317,590.40 × 131,772.48
  4. Step 4: Simplify right side
    211,667.70x = 41,849,673,973.33
  5. Step 5: Solve for x
    x = 41,849,673,973.33/211,667.70
  6. Step 6: Final answer
    x = 197,714.03

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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.