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Finding the Third Proportional to 196,870.50 and 305,430.75

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Solution

The third proportional to 196,870.50 and 305,430.75 is: 473,854.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,870.50 : 305,430.75 = 305,430.75 : x
  2. Step 2: Convert to fraction form
    196,870.50/305,430.75 = 305,430.75/x
  3. Step 3: Cross multiply
    196,870.50x = 305,430.75 × 305,430.75
  4. Step 4: Simplify right side
    196,870.50x = 93,287,943,045.56
  5. Step 5: Solve for x
    x = 93,287,943,045.56/196,870.50
  6. Step 6: Final answer
    x = 473,854.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.