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Finding the Fourth Proportional to 298,327.13, 447,135.05 and 207,880.16

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Solution

The fourth proportional to 298,327.13, 447,135.05 and 207,880.16 is: 311,572.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,327.13 : 447,135.05 = 207,880.16 : x
  2. Step 2: Convert to fraction form
    298,327.13/447,135.05 = 207,880.16/x
  3. Step 3: Cross multiply
    298,327.13x = 447,135.05 × 207,880.16
  4. Step 4: Simplify right side
    298,327.13x = 92,950,506,344.48
  5. Step 5: Solve for x
    x = 92,950,506,344.48/298,327.13
  6. Step 6: Final answer
    x = 311,572.42

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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.