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Finding the Fourth Proportional to 276,281.70, 414,422.55 and 274,313.40

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Solution

The fourth proportional to 276,281.70, 414,422.55 and 274,313.40 is: 411,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,281.70 : 414,422.55 = 274,313.40 : x
  2. Step 2: Convert to fraction form
    276,281.70/414,422.55 = 274,313.40/x
  3. Step 3: Cross multiply
    276,281.70x = 414,422.55 × 274,313.40
  4. Step 4: Simplify right side
    276,281.70x = 113,681,658,727.17
  5. Step 5: Solve for x
    x = 113,681,658,727.17/276,281.70
  6. Step 6: Final answer
    x = 411,470.10

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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.