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Finding the Fourth Proportional to 276,666.60, 414,999.90 and 265,002.60

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Solution

The fourth proportional to 276,666.60, 414,999.90 and 265,002.60 is: 397,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,666.60 : 414,999.90 = 265,002.60 : x
  2. Step 2: Convert to fraction form
    276,666.60/414,999.90 = 265,002.60/x
  3. Step 3: Cross multiply
    276,666.60x = 414,999.90 × 265,002.60
  4. Step 4: Simplify right side
    276,666.60x = 109,976,052,499.74
  5. Step 5: Solve for x
    x = 109,976,052,499.74/276,666.60
  6. Step 6: Final answer
    x = 397,503.90

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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.