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Finding the Fourth Proportional to 219,994.58, 303,594.36 and 129,352.34

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Solution

The fourth proportional to 219,994.58, 303,594.36 and 129,352.34 is: 178,507.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,994.58 : 303,594.36 = 129,352.34 : x
  2. Step 2: Convert to fraction form
    219,994.58/303,594.36 = 129,352.34/x
  3. Step 3: Cross multiply
    219,994.58x = 303,594.36 × 129,352.34
  4. Step 4: Simplify right side
    219,994.58x = 39,270,640,876.80
  5. Step 5: Solve for x
    x = 39,270,640,876.80/219,994.58
  6. Step 6: Final answer
    x = 178,507.31

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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.