Home / 218,371.11-301,348.94-122,870.31

Finding the Fourth Proportional to 218,371.11, 301,348.94 and 122,870.31

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Solution

The fourth proportional to 218,371.11, 301,348.94 and 122,870.31 is: 169,559.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,371.11 : 301,348.94 = 122,870.31 : x
  2. Step 2: Convert to fraction form
    218,371.11/301,348.94 = 122,870.31/x
  3. Step 3: Cross multiply
    218,371.11x = 301,348.94 × 122,870.31
  4. Step 4: Simplify right side
    218,371.11x = 37,026,837,061.62
  5. Step 5: Solve for x
    x = 37,026,837,061.62/218,371.11
  6. Step 6: Final answer
    x = 169,559.23

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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.