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Finding the Fourth Proportional to 311,914.86, 430,442.52 and 168,674.94

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Solution

The fourth proportional to 311,914.86, 430,442.52 and 168,674.94 is: 232,771.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,914.86 : 430,442.52 = 168,674.94 : x
  2. Step 2: Convert to fraction form
    311,914.86/430,442.52 = 168,674.94/x
  3. Step 3: Cross multiply
    311,914.86x = 430,442.52 × 168,674.94
  4. Step 4: Simplify right side
    311,914.86x = 72,604,866,234.45
  5. Step 5: Solve for x
    x = 72,604,866,234.45/311,914.86
  6. Step 6: Final answer
    x = 232,771.42

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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.