Home / 355,828.87-491,039.48-194,681.60

Finding the Fourth Proportional to 355,828.87, 491,039.48 and 194,681.60

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Solution

The fourth proportional to 355,828.87, 491,039.48 and 194,681.60 is: 268,658.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,828.87 : 491,039.48 = 194,681.60 : x
  2. Step 2: Convert to fraction form
    355,828.87/491,039.48 = 194,681.60/x
  3. Step 3: Cross multiply
    355,828.87x = 491,039.48 × 194,681.60
  4. Step 4: Simplify right side
    355,828.87x = 95,596,351,629.57
  5. Step 5: Solve for x
    x = 95,596,351,629.57/355,828.87
  6. Step 6: Final answer
    x = 268,658.22

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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.