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Finding the Fourth Proportional to 358,364.20, 494,542.68 and 197,219.20

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Solution

The fourth proportional to 358,364.20, 494,542.68 and 197,219.20 is: 272,162.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,364.20 : 494,542.68 = 197,219.20 : x
  2. Step 2: Convert to fraction form
    358,364.20/494,542.68 = 197,219.20/x
  3. Step 3: Cross multiply
    358,364.20x = 494,542.68 × 197,219.20
  4. Step 4: Simplify right side
    358,364.20x = 97,533,311,715.46
  5. Step 5: Solve for x
    x = 97,533,311,715.46/358,364.20
  6. Step 6: Final answer
    x = 272,162.54

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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.