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Finding the Fourth Proportional to 302,495.20, 453,915.60 and 115,640.80

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Solution

The fourth proportional to 302,495.20, 453,915.60 and 115,640.80 is: 173,527.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,495.20 : 453,915.60 = 115,640.80 : x
  2. Step 2: Convert to fraction form
    302,495.20/453,915.60 = 115,640.80/x
  3. Step 3: Cross multiply
    302,495.20x = 453,915.60 × 115,640.80
  4. Step 4: Simplify right side
    302,495.20x = 52,491,163,116.48
  5. Step 5: Solve for x
    x = 52,491,163,116.48/302,495.20
  6. Step 6: Final answer
    x = 173,527.26

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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.