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Finding the Fourth Proportional to 358,305.95, 494,478.47 and 222,383.67

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Solution

The fourth proportional to 358,305.95, 494,478.47 and 222,383.67 is: 306,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,305.95 : 494,478.47 = 222,383.67 : x
  2. Step 2: Convert to fraction form
    358,305.95/494,478.47 = 222,383.67/x
  3. Step 3: Cross multiply
    358,305.95x = 494,478.47 × 222,383.67
  4. Step 4: Simplify right side
    358,305.95x = 109,963,935,782.67
  5. Step 5: Solve for x
    x = 109,963,935,782.67/358,305.95
  6. Step 6: Final answer
    x = 306,899.56

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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.