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Finding the Fourth Proportional to 376,261.45, 519,240.81 and 225,358.45

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Solution

The fourth proportional to 376,261.45, 519,240.81 and 225,358.45 is: 310,994.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,261.45 : 519,240.81 = 225,358.45 : x
  2. Step 2: Convert to fraction form
    376,261.45/519,240.81 = 225,358.45/x
  3. Step 3: Cross multiply
    376,261.45x = 519,240.81 × 225,358.45
  4. Step 4: Simplify right side
    376,261.45x = 117,015,306,586.07
  5. Step 5: Solve for x
    x = 117,015,306,586.07/376,261.45
  6. Step 6: Final answer
    x = 310,994.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.