Finding the Fourth Proportional to 316,354.91, 436,569.80 and 173,114.96
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Solution
The fourth proportional to 316,354.91, 436,569.80 and 173,114.96 is: 238,898.65
Step by Step Solution
- Step 1: Write the proportion equation
316,354.91 : 436,569.80 = 173,114.96 : x - Step 2: Convert to fraction form
316,354.91/436,569.80 = 173,114.96/x - Step 3: Cross multiply
316,354.91x = 436,569.80 × 173,114.96 - Step 4: Simplify right side
316,354.91x = 75,576,760,415.78 - Step 5: Solve for x
x = 75,576,760,415.78/316,354.91 - Step 6: Final answer
x = 238,898.65
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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.