Finding the Fourth Proportional to 235,679.91, 325,237.68 and 128,249.91
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Solution
The fourth proportional to 235,679.91, 325,237.68 and 128,249.91 is: 176,984.55
Step by Step Solution
- Step 1: Write the proportion equation
235,679.91 : 325,237.68 = 128,249.91 : x - Step 2: Convert to fraction form
235,679.91/325,237.68 = 128,249.91/x - Step 3: Cross multiply
235,679.91x = 325,237.68 × 128,249.91 - Step 4: Simplify right side
235,679.91x = 41,711,703,188.61 - Step 5: Solve for x
x = 41,711,703,188.61/235,679.91 - Step 6: Final answer
x = 176,984.55
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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.