Finding the Fourth Proportional to 236,409.04, 326,244.10 and 128,979.02
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Solution
The fourth proportional to 236,409.04, 326,244.10 and 128,979.02 is: 177,990.84
Step by Step Solution
- Step 1: Write the proportion equation
236,409.04 : 326,244.10 = 128,979.02 : x - Step 2: Convert to fraction form
236,409.04/326,244.10 = 128,979.02/x - Step 3: Cross multiply
236,409.04x = 326,244.10 × 128,979.02 - Step 4: Simplify right side
236,409.04x = 42,078,644,298.78 - Step 5: Solve for x
x = 42,078,644,298.78/236,409.04 - Step 6: Final answer
x = 177,990.84
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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.