Finding the Fourth Proportional to 316,992.79, 437,494.91 and 196,172.99
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Solution
The fourth proportional to 316,992.79, 437,494.91 and 196,172.99 is: 270,746.48
Step by Step Solution
- Step 1: Write the proportion equation
316,992.79 : 437,494.91 = 196,172.99 : x - Step 2: Convert to fraction form
316,992.79/437,494.91 = 196,172.99/x - Step 3: Cross multiply
316,992.79x = 437,494.91 × 196,172.99 - Step 4: Simplify right side
316,992.79x = 85,824,681,436.14 - Step 5: Solve for x
x = 85,824,681,436.14/316,992.79 - Step 6: Final answer
x = 270,746.48
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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.