Finding the Third Proportional to 257,719.50 and 387,067.50
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Solution
The third proportional to 257,719.50 and 387,067.50 is: 581,334.55
Step by Step Solution
- Step 1: Write the proportion equation
257,719.50 : 387,067.50 = 387,067.50 : x - Step 2: Convert to fraction form
257,719.50/387,067.50 = 387,067.50/x - Step 3: Cross multiply
257,719.50x = 387,067.50 × 387,067.50 - Step 4: Simplify right side
257,719.50x = 149,821,249,556.25 - Step 5: Solve for x
x = 149,821,249,556.25/257,719.50 - Step 6: Final answer
x = 581,334.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.