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Finding the Fourth Proportional to 358,344.54, 494,260.65 and 296,896.86

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Solution

The fourth proportional to 358,344.54, 494,260.65 and 296,896.86 is: 409,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,344.54 : 494,260.65 = 296,896.86 : x
  2. Step 2: Convert to fraction form
    358,344.54/494,260.65 = 296,896.86/x
  3. Step 3: Cross multiply
    358,344.54x = 494,260.65 × 296,896.86
  4. Step 4: Simplify right side
    358,344.54x = 146,744,435,006.56
  5. Step 5: Solve for x
    x = 146,744,435,006.56/358,344.54
  6. Step 6: Final answer
    x = 409,506.55

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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.