Home / 201,236.40-301,417.20-122,212.80

Finding the Fourth Proportional to 201,236.40, 301,417.20 and 122,212.80

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Solution

The fourth proportional to 201,236.40, 301,417.20 and 122,212.80 is: 183,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,236.40 : 301,417.20 = 122,212.80 : x
  2. Step 2: Convert to fraction form
    201,236.40/301,417.20 = 122,212.80/x
  3. Step 3: Cross multiply
    201,236.40x = 301,417.20 × 122,212.80
  4. Step 4: Simplify right side
    201,236.40x = 36,837,039,980.16
  5. Step 5: Solve for x
    x = 36,837,039,980.16/201,236.40
  6. Step 6: Final answer
    x = 183,053.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.