Finding the Third Proportional to 257,991.75 and 390,889.13
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Solution
The third proportional to 257,991.75 and 390,889.13 is: 592,244.94
Step by Step Solution
- Step 1: Write the proportion equation
257,991.75 : 390,889.13 = 390,889.13 : x - Step 2: Convert to fraction form
257,991.75/390,889.13 = 390,889.13/x - Step 3: Cross multiply
257,991.75x = 390,889.13 × 390,889.13 - Step 4: Simplify right side
257,991.75x = 152,794,308,043.27 - Step 5: Solve for x
x = 152,794,308,043.27/257,991.75 - Step 6: Final answer
x = 592,244.94
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These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.