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Finding the Fourth Proportional to 303,559.02, 418,522.05 and 248,909.85

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Solution

The fourth proportional to 303,559.02, 418,522.05 and 248,909.85 is: 343,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,559.02 : 418,522.05 = 248,909.85 : x
  2. Step 2: Convert to fraction form
    303,559.02/418,522.05 = 248,909.85/x
  3. Step 3: Cross multiply
    303,559.02x = 418,522.05 × 248,909.85
  4. Step 4: Simplify right side
    303,559.02x = 104,174,260,687.19
  5. Step 5: Solve for x
    x = 104,174,260,687.19/303,559.02
  6. Step 6: Final answer
    x = 343,176.30

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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.