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Finding the Fourth Proportional to 219,915.36, 303,483.78 and 119,313.36

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Solution

The fourth proportional to 219,915.36, 303,483.78 and 119,313.36 is: 164,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,915.36 : 303,483.78 = 119,313.36 : x
  2. Step 2: Convert to fraction form
    219,915.36/303,483.78 = 119,313.36/x
  3. Step 3: Cross multiply
    219,915.36x = 303,483.78 × 119,313.36
  4. Step 4: Simplify right side
    219,915.36x = 36,209,669,497.30
  5. Step 5: Solve for x
    x = 36,209,669,497.30/219,915.36
  6. Step 6: Final answer
    x = 164,652.75

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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.