Finding the Fourth Proportional to 236,378.66, 326,203.62 and 128,948.36
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Solution
The fourth proportional to 236,378.66, 326,203.62 and 128,948.36 is: 177,949.32
Step by Step Solution
- Step 1: Write the proportion equation
236,378.66 : 326,203.62 = 128,948.36 : x - Step 2: Convert to fraction form
236,378.66/326,203.62 = 128,948.36/x - Step 3: Cross multiply
236,378.66x = 326,203.62 × 128,948.36 - Step 4: Simplify right side
236,378.66x = 42,063,421,825.06 - Step 5: Solve for x
x = 42,063,421,825.06/236,378.66 - Step 6: Final answer
x = 177,949.32
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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.