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Finding the Fourth Proportional to 219,993.70, 303,595.62 and 143,561.70

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Solution

The fourth proportional to 219,993.70, 303,595.62 and 143,561.70 is: 198,117.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,993.70 : 303,595.62 = 143,561.70 : x
  2. Step 2: Convert to fraction form
    219,993.70/303,595.62 = 143,561.70/x
  3. Step 3: Cross multiply
    219,993.70x = 303,595.62 × 143,561.70
  4. Step 4: Simplify right side
    219,993.70x = 43,584,703,319.75
  5. Step 5: Solve for x
    x = 43,584,703,319.75/219,993.70
  6. Step 6: Final answer
    x = 198,117.96

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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.