Finding the Fourth Proportional to 463,146.19, 639,141.74 and 251,178.19
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Solution
The fourth proportional to 463,146.19, 639,141.74 and 251,178.19 is: 346,625.90
Step by Step Solution
- Step 1: Write the proportion equation
463,146.19 : 639,141.74 = 251,178.19 : x - Step 2: Convert to fraction form
463,146.19/639,141.74 = 251,178.19/x - Step 3: Cross multiply
463,146.19x = 639,141.74 × 251,178.19 - Step 4: Simplify right side
463,146.19x = 160,538,463,494.82 - Step 5: Solve for x
x = 160,538,463,494.82/463,146.19 - Step 6: Final answer
x = 346,625.90
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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.