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Finding the Fourth Proportional to 300,038.70, 449,986.05 and 173,405.10

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Solution

The fourth proportional to 300,038.70, 449,986.05 and 173,405.10 is: 260,066.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,038.70 : 449,986.05 = 173,405.10 : x
  2. Step 2: Convert to fraction form
    300,038.70/449,986.05 = 173,405.10/x
  3. Step 3: Cross multiply
    300,038.70x = 449,986.05 × 173,405.10
  4. Step 4: Simplify right side
    300,038.70x = 78,029,875,998.86
  5. Step 5: Solve for x
    x = 78,029,875,998.86/300,038.70
  6. Step 6: Final answer
    x = 260,066.04

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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.