Finding the Third Proportional to 331,417.50 and 518,451.75
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Solution
The third proportional to 331,417.50 and 518,451.75 is: 811,038.09
Step by Step Solution
- Step 1: Write the proportion equation
331,417.50 : 518,451.75 = 518,451.75 : x - Step 2: Convert to fraction form
331,417.50/518,451.75 = 518,451.75/x - Step 3: Cross multiply
331,417.50x = 518,451.75 × 518,451.75 - Step 4: Simplify right side
331,417.50x = 268,792,217,078.06 - Step 5: Solve for x
x = 268,792,217,078.06/331,417.50 - Step 6: Final answer
x = 811,038.09
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Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.