Finding the Fourth Proportional to 316,857.75, 437,263.71 and 173,623.23
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Solution
The fourth proportional to 316,857.75, 437,263.71 and 173,623.23 is: 239,600.07
Step by Step Solution
- Step 1: Write the proportion equation
316,857.75 : 437,263.71 = 173,623.23 : x - Step 2: Convert to fraction form
316,857.75/437,263.71 = 173,623.23/x - Step 3: Cross multiply
316,857.75x = 437,263.71 × 173,623.23 - Step 4: Simplify right side
316,857.75x = 75,919,137,691.98 - Step 5: Solve for x
x = 75,919,137,691.98/316,857.75 - Step 6: Final answer
x = 239,600.07
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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.