Finding the Fourth Proportional to 316,525.05, 436,805.19 and 173,294.19
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Solution
The fourth proportional to 316,525.05, 436,805.19 and 173,294.19 is: 239,146.32
Step by Step Solution
- Step 1: Write the proportion equation
316,525.05 : 436,805.19 = 173,294.19 : x - Step 2: Convert to fraction form
316,525.05/436,805.19 = 173,294.19/x - Step 3: Cross multiply
316,525.05x = 436,805.19 × 173,294.19 - Step 4: Simplify right side
316,525.05x = 75,695,801,588.85 - Step 5: Solve for x
x = 75,695,801,588.85/316,525.05 - Step 6: Final answer
x = 239,146.32
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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.