Finding the Fourth Proportional to 227,317.16, 313,636.14 and 129,199.04
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Solution
The fourth proportional to 227,317.16, 313,636.14 and 129,199.04 is: 178,259.70
Step by Step Solution
- Step 1: Write the proportion equation
227,317.16 : 313,636.14 = 129,199.04 : x - Step 2: Convert to fraction form
227,317.16/313,636.14 = 129,199.04/x - Step 3: Cross multiply
227,317.16x = 313,636.14 × 129,199.04 - Step 4: Simplify right side
227,317.16x = 40,521,488,197.31 - Step 5: Solve for x
x = 40,521,488,197.31/227,317.16 - Step 6: Final answer
x = 178,259.70
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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.