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Finding the Fourth Proportional to 201,171.30, 301,987.35 and 118,112.10

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Solution

The fourth proportional to 201,171.30, 301,987.35 and 118,112.10 is: 177,303.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,171.30 : 301,987.35 = 118,112.10 : x
  2. Step 2: Convert to fraction form
    201,171.30/301,987.35 = 118,112.10/x
  3. Step 3: Cross multiply
    201,171.30x = 301,987.35 × 118,112.10
  4. Step 4: Simplify right side
    201,171.30x = 35,668,360,081.94
  5. Step 5: Solve for x
    x = 35,668,360,081.94/201,171.30
  6. Step 6: Final answer
    x = 177,303.42

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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.