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Finding the Fourth Proportional to 312,226.92, 430,874.40 and 168,986.92

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Solution

The fourth proportional to 312,226.92, 430,874.40 and 168,986.92 is: 233,202.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,226.92 : 430,874.40 = 168,986.92 : x
  2. Step 2: Convert to fraction form
    312,226.92/430,874.40 = 168,986.92/x
  3. Step 3: Cross multiply
    312,226.92x = 430,874.40 × 168,986.92
  4. Step 4: Simplify right side
    312,226.92x = 72,812,137,762.85
  5. Step 5: Solve for x
    x = 72,812,137,762.85/312,226.92
  6. Step 6: Final answer
    x = 233,202.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.