Finding the Fourth Proportional to 316,711.95, 437,062.60 and 173,474.38
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Solution
The fourth proportional to 316,711.95, 437,062.60 and 173,474.38 is: 239,394.70
Step by Step Solution
- Step 1: Write the proportion equation
316,711.95 : 437,062.60 = 173,474.38 : x - Step 2: Convert to fraction form
316,711.95/437,062.60 = 173,474.38/x - Step 3: Cross multiply
316,711.95x = 437,062.60 × 173,474.38 - Step 4: Simplify right side
316,711.95x = 75,819,163,556.19 - Step 5: Solve for x
x = 75,819,163,556.19/316,711.95 - Step 6: Final answer
x = 239,394.70
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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.