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Finding the Fourth Proportional to 219,542.58, 302,969.06 and 118,940.58

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Solution

The fourth proportional to 219,542.58, 302,969.06 and 118,940.58 is: 164,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,542.58 : 302,969.06 = 118,940.58 : x
  2. Step 2: Convert to fraction form
    219,542.58/302,969.06 = 118,940.58/x
  3. Step 3: Cross multiply
    219,542.58x = 302,969.06 × 118,940.58
  4. Step 4: Simplify right side
    219,542.58x = 36,035,315,718.45
  5. Step 5: Solve for x
    x = 36,035,315,718.45/219,542.58
  6. Step 6: Final answer
    x = 164,138.16

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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.