Finding the Fourth Proportional to 235,633.80, 325,164.93 and 128,204.26
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Solution
The fourth proportional to 235,633.80, 325,164.93 and 128,204.26 is: 176,916.59
Step by Step Solution
- Step 1: Write the proportion equation
235,633.80 : 325,164.93 = 128,204.26 : x - Step 2: Convert to fraction form
235,633.80/325,164.93 = 128,204.26/x - Step 3: Cross multiply
235,633.80x = 325,164.93 × 128,204.26 - Step 4: Simplify right side
235,633.80x = 41,687,529,228.60 - Step 5: Solve for x
x = 41,687,529,228.60/235,633.80 - Step 6: Final answer
x = 176,916.59
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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.