Finding the Fourth Proportional to 236,347.13, 326,163.44 and 128,921.02
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Solution
The fourth proportional to 236,347.13, 326,163.44 and 128,921.02 is: 177,913.40
Step by Step Solution
- Step 1: Write the proportion equation
236,347.13 : 326,163.44 = 128,921.02 : x - Step 2: Convert to fraction form
236,347.13/326,163.44 = 128,921.02/x - Step 3: Cross multiply
236,347.13x = 326,163.44 × 128,921.02 - Step 4: Simplify right side
236,347.13x = 42,049,322,878.40 - Step 5: Solve for x
x = 42,049,322,878.40/236,347.13 - Step 6: Final answer
x = 177,913.40
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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.