Finding the Fourth Proportional to 235,722.79, 325,296.48 and 128,292.81
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Solution
The fourth proportional to 235,722.79, 325,296.48 and 128,292.81 is: 177,043.55
Step by Step Solution
- Step 1: Write the proportion equation
235,722.79 : 325,296.48 = 128,292.81 : x - Step 2: Convert to fraction form
235,722.79/325,296.48 = 128,292.81/x - Step 3: Cross multiply
235,722.79x = 325,296.48 × 128,292.81 - Step 4: Simplify right side
235,722.79x = 41,733,199,502.31 - Step 5: Solve for x
x = 41,733,199,502.31/235,722.79 - Step 6: Final answer
x = 177,043.55
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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.