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Finding the Fourth Proportional to 343,668.94, 515,880.53 and 273,045.55

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Solution

The fourth proportional to 343,668.94, 515,880.53 and 273,045.55 is: 409,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,668.94 : 515,880.53 = 273,045.55 : x
  2. Step 2: Convert to fraction form
    343,668.94/515,880.53 = 273,045.55/x
  3. Step 3: Cross multiply
    343,668.94x = 515,880.53 × 273,045.55
  4. Step 4: Simplify right side
    343,668.94x = 140,858,882,384.41
  5. Step 5: Solve for x
    x = 140,858,882,384.41/343,668.94
  6. Step 6: Final answer
    x = 409,867.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.