Finding the Fourth Proportional to 316,367.70, 436,587.42 and 173,127.79
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Solution
The fourth proportional to 316,367.70, 436,587.42 and 173,127.79 is: 238,916.35
Step by Step Solution
- Step 1: Write the proportion equation
316,367.70 : 436,587.42 = 173,127.79 : x - Step 2: Convert to fraction form
316,367.70/436,587.42 = 173,127.79/x - Step 3: Cross multiply
316,367.70x = 436,587.42 × 173,127.79 - Step 4: Simplify right side
316,367.70x = 75,585,415,166.40 - Step 5: Solve for x
x = 75,585,415,166.40/316,367.70 - Step 6: Final answer
x = 238,916.35
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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.