Home / 201,216.40-301,387.20-122,192.80

Finding the Fourth Proportional to 201,216.40, 301,387.20 and 122,192.80

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Solution

The fourth proportional to 201,216.40, 301,387.20 and 122,192.80 is: 183,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,216.40 : 301,387.20 = 122,192.80 : x
  2. Step 2: Convert to fraction form
    201,216.40/301,387.20 = 122,192.80/x
  3. Step 3: Cross multiply
    201,216.40x = 301,387.20 × 122,192.80
  4. Step 4: Simplify right side
    201,216.40x = 36,827,345,852.16
  5. Step 5: Solve for x
    x = 36,827,345,852.16/201,216.40
  6. Step 6: Final answer
    x = 183,023.58

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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.