Finding the Third Proportional to 245,245.50 and 390,469.50
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Solution
The third proportional to 245,245.50 and 390,469.50 is: 621,689.00
Step by Step Solution
- Step 1: Write the proportion equation
245,245.50 : 390,469.50 = 390,469.50 : x - Step 2: Convert to fraction form
245,245.50/390,469.50 = 390,469.50/x - Step 3: Cross multiply
245,245.50x = 390,469.50 × 390,469.50 - Step 4: Simplify right side
245,245.50x = 152,466,430,430.25 - Step 5: Solve for x
x = 152,466,430,430.25/245,245.50 - Step 6: Final answer
x = 621,689.00
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These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.