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Finding the Fourth Proportional to 318,880.08, 440,049.21 and 175,653.45

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Solution

The fourth proportional to 318,880.08, 440,049.21 and 175,653.45 is: 242,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,880.08 : 440,049.21 = 175,653.45 : x
  2. Step 2: Convert to fraction form
    318,880.08/440,049.21 = 175,653.45/x
  3. Step 3: Cross multiply
    318,880.08x = 440,049.21 × 175,653.45
  4. Step 4: Simplify right side
    318,880.08x = 77,296,161,906.27
  5. Step 5: Solve for x
    x = 77,296,161,906.27/318,880.08
  6. Step 6: Final answer
    x = 242,398.84

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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.