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Finding the Fourth Proportional to 219,941.70, 329,912.55 and 141,209.70

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Solution

The fourth proportional to 219,941.70, 329,912.55 and 141,209.70 is: 211,814.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,941.70 : 329,912.55 = 141,209.70 : x
  2. Step 2: Convert to fraction form
    219,941.70/329,912.55 = 141,209.70/x
  3. Step 3: Cross multiply
    219,941.70x = 329,912.55 × 141,209.70
  4. Step 4: Simplify right side
    219,941.70x = 46,586,852,211.74
  5. Step 5: Solve for x
    x = 46,586,852,211.74/219,941.70
  6. Step 6: Final answer
    x = 211,814.55

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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.