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Finding the Fourth Proportional to 201,315.20, 301,608.30 and 159,470.60

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Solution

The fourth proportional to 201,315.20, 301,608.30 and 159,470.60 is: 238,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,315.20 : 301,608.30 = 159,470.60 : x
  2. Step 2: Convert to fraction form
    201,315.20/301,608.30 = 159,470.60/x
  3. Step 3: Cross multiply
    201,315.20x = 301,608.30 × 159,470.60
  4. Step 4: Simplify right side
    201,315.20x = 48,097,656,565.98
  5. Step 5: Solve for x
    x = 48,097,656,565.98/201,315.20
  6. Step 6: Final answer
    x = 238,917.16

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1.5x scale

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.