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Finding the Fourth Proportional to 298,406.72, 447,682.98 and 148,684.70

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Solution

The fourth proportional to 298,406.72, 447,682.98 and 148,684.70 is: 223,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,406.72 : 447,682.98 = 148,684.70 : x
  2. Step 2: Convert to fraction form
    298,406.72/447,682.98 = 148,684.70/x
  3. Step 3: Cross multiply
    298,406.72x = 447,682.98 × 148,684.70
  4. Step 4: Simplify right side
    298,406.72x = 66,563,607,337.99
  5. Step 5: Solve for x
    x = 66,563,607,337.99/298,406.72
  6. Step 6: Final answer
    x = 223,063.37

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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.