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Finding the Fourth Proportional to 276,664.40, 414,996.60 and 265,000.40

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Solution

The fourth proportional to 276,664.40, 414,996.60 and 265,000.40 is: 397,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,664.40 : 414,996.60 = 265,000.40 : x
  2. Step 2: Convert to fraction form
    276,664.40/414,996.60 = 265,000.40/x
  3. Step 3: Cross multiply
    276,664.40x = 414,996.60 × 265,000.40
  4. Step 4: Simplify right side
    276,664.40x = 109,974,264,998.64
  5. Step 5: Solve for x
    x = 109,974,264,998.64/276,664.40
  6. Step 6: Final answer
    x = 397,500.60

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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.