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Finding the Fourth Proportional to 201,119.98, 301,807.05 and 112,431.73

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Solution

The fourth proportional to 201,119.98, 301,807.05 and 112,431.73 is: 168,718.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,119.98 : 301,807.05 = 112,431.73 : x
  2. Step 2: Convert to fraction form
    201,119.98/301,807.05 = 112,431.73/x
  3. Step 3: Cross multiply
    201,119.98x = 301,807.05 × 112,431.73
  4. Step 4: Simplify right side
    201,119.98x = 33,932,688,757.70
  5. Step 5: Solve for x
    x = 33,932,688,757.70/201,119.98
  6. Step 6: Final answer
    x = 168,718.64

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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.