Finding the Third Proportional to 243,141.75 and 390,660.75
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Solution
The third proportional to 243,141.75 and 390,660.75 is: 627,682.50
Step by Step Solution
- Step 1: Write the proportion equation
243,141.75 : 390,660.75 = 390,660.75 : x - Step 2: Convert to fraction form
243,141.75/390,660.75 = 390,660.75/x - Step 3: Cross multiply
243,141.75x = 390,660.75 × 390,660.75 - Step 4: Simplify right side
243,141.75x = 152,615,821,590.56 - Step 5: Solve for x
x = 152,615,821,590.56/243,141.75 - Step 6: Final answer
x = 627,682.50
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These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.