Home / 355,856.20-491,077.02-194,709.40

Finding the Fourth Proportional to 355,856.20, 491,077.02 and 194,709.40

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Solution

The fourth proportional to 355,856.20, 491,077.02 and 194,709.40 is: 268,696.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,856.20 : 491,077.02 = 194,709.40 : x
  2. Step 2: Convert to fraction form
    355,856.20/491,077.02 = 194,709.40/x
  3. Step 3: Cross multiply
    355,856.20x = 491,077.02 × 194,709.40
  4. Step 4: Simplify right side
    355,856.20x = 95,617,311,917.99
  5. Step 5: Solve for x
    x = 95,617,311,917.99/355,856.20
  6. Step 6: Final answer
    x = 268,696.49

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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.