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Finding the Fourth Proportional to 219,522.32, 302,940.36 and 118,920.56

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Solution

The fourth proportional to 219,522.32, 302,940.36 and 118,920.56 is: 164,110.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,522.32 : 302,940.36 = 118,920.56 : x
  2. Step 2: Convert to fraction form
    219,522.32/302,940.36 = 118,920.56/x
  3. Step 3: Cross multiply
    219,522.32x = 302,940.36 × 118,920.56
  4. Step 4: Simplify right side
    219,522.32x = 36,025,837,257.80
  5. Step 5: Solve for x
    x = 36,025,837,257.80/219,522.32
  6. Step 6: Final answer
    x = 164,110.13

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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.