Finding the Fourth Proportional to 315,957.36, 473,921.44 and 79,294.80
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Solution
The fourth proportional to 315,957.36, 473,921.44 and 79,294.80 is: 118,938.54
Step by Step Solution
- Step 1: Write the proportion equation
315,957.36 : 473,921.44 = 79,294.80 : x - Step 2: Convert to fraction form
315,957.36/473,921.44 = 79,294.80/x - Step 3: Cross multiply
315,957.36x = 473,921.44 × 79,294.80 - Step 4: Simplify right side
315,957.36x = 37,579,505,800.51 - Step 5: Solve for x
x = 37,579,505,800.51/315,957.36 - Step 6: Final answer
x = 118,938.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.