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Finding the Fourth Proportional to 201,120.50, 301,807.82 and 112,432.19

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Solution

The fourth proportional to 201,120.50, 301,807.82 and 112,432.19 is: 168,719.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,120.50 : 301,807.82 = 112,432.19 : x
  2. Step 2: Convert to fraction form
    201,120.50/301,807.82 = 112,432.19/x
  3. Step 3: Cross multiply
    201,120.50x = 301,807.82 × 112,432.19
  4. Step 4: Simplify right side
    201,120.50x = 33,932,912,933.77
  5. Step 5: Solve for x
    x = 33,932,912,933.77/201,120.50
  6. Step 6: Final answer
    x = 168,719.31

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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.