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Finding the Fourth Proportional to 302,919.39, 418,028.78 and 175,668.80

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Solution

The fourth proportional to 302,919.39, 418,028.78 and 175,668.80 is: 242,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,919.39 : 418,028.78 = 175,668.80 : x
  2. Step 2: Convert to fraction form
    302,919.39/418,028.78 = 175,668.80/x
  3. Step 3: Cross multiply
    302,919.39x = 418,028.78 × 175,668.80
  4. Step 4: Simplify right side
    302,919.39x = 73,434,612,497.09
  5. Step 5: Solve for x
    x = 73,434,612,497.09/302,919.39
  6. Step 6: Final answer
    x = 242,422.95

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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.