Finding the Fourth Proportional to 226,121.23, 312,024.18 and 130,658.68
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Solution
The fourth proportional to 226,121.23, 312,024.18 and 130,658.68 is: 180,295.62
Step by Step Solution
- Step 1: Write the proportion equation
226,121.23 : 312,024.18 = 130,658.68 : x - Step 2: Convert to fraction form
226,121.23/312,024.18 = 130,658.68/x - Step 3: Cross multiply
226,121.23x = 312,024.18 × 130,658.68 - Step 4: Simplify right side
226,121.23x = 40,768,667,486.88 - Step 5: Solve for x
x = 40,768,667,486.88/226,121.23 - Step 6: Final answer
x = 180,295.62
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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.