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Finding the Fourth Proportional to 219,242, 302,554.23 and 118,640

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Solution

The fourth proportional to 219,242, 302,554.23 and 118,640 is: 163,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,242 : 302,554.23 = 118,640 : x
  2. Step 2: Convert to fraction form
    219,242/302,554.23 = 118,640/x
  3. Step 3: Cross multiply
    219,242x = 302,554.23 × 118,640
  4. Step 4: Simplify right side
    219,242x = 35,895,033,847.20
  5. Step 5: Solve for x
    x = 35,895,033,847.20/219,242
  6. Step 6: Final answer
    x = 163,723.35

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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.