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Finding the Fourth Proportional to 219,809.70, 329,714.55 and 141,077.70

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Solution

The fourth proportional to 219,809.70, 329,714.55 and 141,077.70 is: 211,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,809.70 : 329,714.55 = 141,077.70 : x
  2. Step 2: Convert to fraction form
    219,809.70/329,714.55 = 141,077.70/x
  3. Step 3: Cross multiply
    219,809.70x = 329,714.55 × 141,077.70
  4. Step 4: Simplify right side
    219,809.70x = 46,515,370,370.54
  5. Step 5: Solve for x
    x = 46,515,370,370.54/219,809.70
  6. Step 6: Final answer
    x = 211,616.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.