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Finding the Fourth Proportional to 276,216.87, 412,300.85 and 255,930.39

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Solution

The fourth proportional to 276,216.87, 412,300.85 and 255,930.39 is: 382,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,216.87 : 412,300.85 = 255,930.39 : x
  2. Step 2: Convert to fraction form
    276,216.87/412,300.85 = 255,930.39/x
  3. Step 3: Cross multiply
    276,216.87x = 412,300.85 × 255,930.39
  4. Step 4: Simplify right side
    276,216.87x = 105,520,316,058.18
  5. Step 5: Solve for x
    x = 105,520,316,058.18/276,216.87
  6. Step 6: Final answer
    x = 382,019.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.