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Finding the Fourth Proportional to 300,030.96, 449,999.40 and 100,354.80

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Solution

The fourth proportional to 300,030.96, 449,999.40 and 100,354.80 is: 150,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,030.96 : 449,999.40 = 100,354.80 : x
  2. Step 2: Convert to fraction form
    300,030.96/449,999.40 = 100,354.80/x
  3. Step 3: Cross multiply
    300,030.96x = 449,999.40 × 100,354.80
  4. Step 4: Simplify right side
    300,030.96x = 45,159,599,787.12
  5. Step 5: Solve for x
    x = 45,159,599,787.12/300,030.96
  6. Step 6: Final answer
    x = 150,516.47

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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.