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Finding the Fourth Proportional to 302,954.40, 453,913.20 and 192,016.80

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Solution

The fourth proportional to 302,954.40, 453,913.20 and 192,016.80 is: 287,696.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,954.40 : 453,913.20 = 192,016.80 : x
  2. Step 2: Convert to fraction form
    302,954.40/453,913.20 = 192,016.80/x
  3. Step 3: Cross multiply
    302,954.40x = 453,913.20 × 192,016.80
  4. Step 4: Simplify right side
    302,954.40x = 87,158,960,141.76
  5. Step 5: Solve for x
    x = 87,158,960,141.76/302,954.40
  6. Step 6: Final answer
    x = 287,696.63

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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.