Finding the Third Proportional to 243,231.75 and 390,813.75
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Solution
The third proportional to 243,231.75 and 390,813.75 is: 627,941.82
Step by Step Solution
- Step 1: Write the proportion equation
243,231.75 : 390,813.75 = 390,813.75 : x - Step 2: Convert to fraction form
243,231.75/390,813.75 = 390,813.75/x - Step 3: Cross multiply
243,231.75x = 390,813.75 × 390,813.75 - Step 4: Simplify right side
243,231.75x = 152,735,387,189.06 - Step 5: Solve for x
x = 152,735,387,189.06/243,231.75 - Step 6: Final answer
x = 627,941.82
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Why These Related Problems?
These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.