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Finding the Fourth Proportional to 341,230.80, 511,846.20 and 288,086.70

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Solution

The fourth proportional to 341,230.80, 511,846.20 and 288,086.70 is: 432,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,230.80 : 511,846.20 = 288,086.70 : x
  2. Step 2: Convert to fraction form
    341,230.80/511,846.20 = 288,086.70/x
  3. Step 3: Cross multiply
    341,230.80x = 511,846.20 × 288,086.70
  4. Step 4: Simplify right side
    341,230.80x = 147,456,082,665.54
  5. Step 5: Solve for x
    x = 147,456,082,665.54/341,230.80
  6. Step 6: Final answer
    x = 432,130.05

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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.