Finding the Fourth Proportional to 235,549.68, 325,055.76 and 128,117.40
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Solution
The fourth proportional to 235,549.68, 325,055.76 and 128,117.40 is: 176,800.49
Step by Step Solution
- Step 1: Write the proportion equation
235,549.68 : 325,055.76 = 128,117.40 : x - Step 2: Convert to fraction form
235,549.68/325,055.76 = 128,117.40/x - Step 3: Cross multiply
235,549.68x = 325,055.76 × 128,117.40 - Step 4: Simplify right side
235,549.68x = 41,645,298,826.22 - Step 5: Solve for x
x = 41,645,298,826.22/235,549.68 - Step 6: Final answer
x = 176,800.49
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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.