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Finding the Fourth Proportional to 341,418.30, 511,690.05 and 303,801.90

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Solution

The fourth proportional to 341,418.30, 511,690.05 and 303,801.90 is: 455,313.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,418.30 : 511,690.05 = 303,801.90 : x
  2. Step 2: Convert to fraction form
    341,418.30/511,690.05 = 303,801.90/x
  3. Step 3: Cross multiply
    341,418.30x = 511,690.05 × 303,801.90
  4. Step 4: Simplify right side
    341,418.30x = 155,452,409,401.10
  5. Step 5: Solve for x
    x = 155,452,409,401.10/341,418.30
  6. Step 6: Final answer
    x = 455,313.64

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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.