Finding the Fourth Proportional to 236,979.12, 327,033.36 and 129,547.20
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Solution
The fourth proportional to 236,979.12, 327,033.36 and 129,547.20 is: 178,776.32
Step by Step Solution
- Step 1: Write the proportion equation
236,979.12 : 327,033.36 = 129,547.20 : x - Step 2: Convert to fraction form
236,979.12/327,033.36 = 129,547.20/x - Step 3: Cross multiply
236,979.12x = 327,033.36 × 129,547.20 - Step 4: Simplify right side
236,979.12x = 42,366,256,094.59 - Step 5: Solve for x
x = 42,366,256,094.59/236,979.12 - Step 6: Final answer
x = 178,776.32
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1.5x scale
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.