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Finding the Fourth Proportional to 218,673.88, 301,768.64 and 123,211.33

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Solution

The fourth proportional to 218,673.88, 301,768.64 and 123,211.33 is: 170,030.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,673.88 : 301,768.64 = 123,211.33 : x
  2. Step 2: Convert to fraction form
    218,673.88/301,768.64 = 123,211.33/x
  3. Step 3: Cross multiply
    218,673.88x = 301,768.64 × 123,211.33
  4. Step 4: Simplify right side
    218,673.88x = 37,181,314,578.26
  5. Step 5: Solve for x
    x = 37,181,314,578.26/218,673.88
  6. Step 6: Final answer
    x = 170,030.89

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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.