Home / 218,822.25-301,974.71-118,220.25

Finding the Fourth Proportional to 218,822.25, 301,974.71 and 118,220.25

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Solution

The fourth proportional to 218,822.25, 301,974.71 and 118,220.25 is: 163,143.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,822.25 : 301,974.71 = 118,220.25 : x
  2. Step 2: Convert to fraction form
    218,822.25/301,974.71 = 118,220.25/x
  3. Step 3: Cross multiply
    218,822.25x = 301,974.71 × 118,220.25
  4. Step 4: Simplify right side
    218,822.25x = 35,699,525,709.88
  5. Step 5: Solve for x
    x = 35,699,525,709.88/218,822.25
  6. Step 6: Final answer
    x = 163,143.95

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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.