Finding the Fourth Proportional to 319,696.40, 441,149.58 and 176,447.18
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Solution
The fourth proportional to 319,696.40, 441,149.58 and 176,447.18 is: 243,479.75
Step by Step Solution
- Step 1: Write the proportion equation
319,696.40 : 441,149.58 = 176,447.18 : x - Step 2: Convert to fraction form
319,696.40/441,149.58 = 176,447.18/x - Step 3: Cross multiply
319,696.40x = 441,149.58 × 176,447.18 - Step 4: Simplify right side
319,696.40x = 77,839,599,349.18 - Step 5: Solve for x
x = 77,839,599,349.18/319,696.40 - Step 6: Final answer
x = 243,479.75
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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.