Finding the Third Proportional to 310,439.74 and 455,438.48
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Solution
The third proportional to 310,439.74 and 455,438.48 is: 668,162.55
Step by Step Solution
- Step 1: Write the proportion equation
310,439.74 : 455,438.48 = 455,438.48 : x - Step 2: Convert to fraction form
310,439.74/455,438.48 = 455,438.48/x - Step 3: Cross multiply
310,439.74x = 455,438.48 × 455,438.48 - Step 4: Simplify right side
310,439.74x = 207,424,207,712.62 - Step 5: Solve for x
x = 207,424,207,712.62/310,439.74 - Step 6: Final answer
x = 668,162.55
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.