Finding the Fourth Proportional to 293,598.05, 405,146.13 and 172,715.99
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Solution
The fourth proportional to 293,598.05, 405,146.13 and 172,715.99 is: 238,336.78
Step by Step Solution
- Step 1: Write the proportion equation
293,598.05 : 405,146.13 = 172,715.99 : x - Step 2: Convert to fraction form
293,598.05/405,146.13 = 172,715.99/x - Step 3: Cross multiply
293,598.05x = 405,146.13 × 172,715.99 - Step 4: Simplify right side
293,598.05x = 69,975,212,911.89 - Step 5: Solve for x
x = 69,975,212,911.89/293,598.05 - Step 6: Final answer
x = 238,336.78
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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.