Finding the Fourth Proportional to 248,988.31, 343,505.95 and 153,328.93
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Solution
The fourth proportional to 248,988.31, 343,505.95 and 153,328.93 is: 211,533.62
Step by Step Solution
- Step 1: Write the proportion equation
248,988.31 : 343,505.95 = 153,328.93 : x - Step 2: Convert to fraction form
248,988.31/343,505.95 = 153,328.93/x - Step 3: Cross multiply
248,988.31x = 343,505.95 × 153,328.93 - Step 4: Simplify right side
248,988.31x = 52,669,399,762.13 - Step 5: Solve for x
x = 52,669,399,762.13/248,988.31 - Step 6: Final answer
x = 211,533.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.