Home / 218,418.51-301,427.24-122,931.39

Finding the Fourth Proportional to 218,418.51, 301,427.24 and 122,931.39

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Solution

The fourth proportional to 218,418.51, 301,427.24 and 122,931.39 is: 169,650.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,418.51 : 301,427.24 = 122,931.39 : x
  2. Step 2: Convert to fraction form
    218,418.51/301,427.24 = 122,931.39/x
  3. Step 3: Cross multiply
    218,418.51x = 301,427.24 × 122,931.39
  4. Step 4: Simplify right side
    218,418.51x = 37,054,868,843.50
  5. Step 5: Solve for x
    x = 37,054,868,843.50/218,418.51
  6. Step 6: Final answer
    x = 169,650.77

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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.