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Finding the Fourth Proportional to 201,185.89, 301,778.95 and 74,809.71

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Solution

The fourth proportional to 201,185.89, 301,778.95 and 74,809.71 is: 112,214.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,185.89 : 301,778.95 = 74,809.71 : x
  2. Step 2: Convert to fraction form
    201,185.89/301,778.95 = 74,809.71/x
  3. Step 3: Cross multiply
    201,185.89x = 301,778.95 × 74,809.71
  4. Step 4: Simplify right side
    201,185.89x = 22,575,996,114.00
  5. Step 5: Solve for x
    x = 22,575,996,114.00/201,185.89
  6. Step 6: Final answer
    x = 112,214.61

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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.