Home / 217,648.35-300,316.82-122,159.07

Finding the Fourth Proportional to 217,648.35, 300,316.82 and 122,159.07

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Solution

The fourth proportional to 217,648.35, 300,316.82 and 122,159.07 is: 168,558.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,648.35 : 300,316.82 = 122,159.07 : x
  2. Step 2: Convert to fraction form
    217,648.35/300,316.82 = 122,159.07/x
  3. Step 3: Cross multiply
    217,648.35x = 300,316.82 × 122,159.07
  4. Step 4: Simplify right side
    217,648.35x = 36,686,422,825.76
  5. Step 5: Solve for x
    x = 36,686,422,825.76/217,648.35
  6. Step 6: Final answer
    x = 168,558.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.