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Finding the Fourth Proportional to 358,358.87, 494,535.34 and 197,213.90

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Solution

The fourth proportional to 358,358.87, 494,535.34 and 197,213.90 is: 272,155.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,358.87 : 494,535.34 = 197,213.90 : x
  2. Step 2: Convert to fraction form
    358,358.87/494,535.34 = 197,213.90/x
  3. Step 3: Cross multiply
    358,358.87x = 494,535.34 × 197,213.90
  4. Step 4: Simplify right side
    358,358.87x = 97,529,240,863.07
  5. Step 5: Solve for x
    x = 97,529,240,863.07/358,358.87
  6. Step 6: Final answer
    x = 272,155.23

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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.