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Finding the Fourth Proportional to 276,348.60, 414,279.90 and 187,313.40

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Solution

The fourth proportional to 276,348.60, 414,279.90 and 187,313.40 is: 280,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,348.60 : 414,279.90 = 187,313.40 : x
  2. Step 2: Convert to fraction form
    276,348.60/414,279.90 = 187,313.40/x
  3. Step 3: Cross multiply
    276,348.60x = 414,279.90 × 187,313.40
  4. Step 4: Simplify right side
    276,348.60x = 77,600,176,620.66
  5. Step 5: Solve for x
    x = 77,600,176,620.66/276,348.60
  6. Step 6: Final answer
    x = 280,805.39

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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.