Finding the Fourth Proportional to 319,447.05, 478,763.55 and 169,759.05
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Solution
The fourth proportional to 319,447.05, 478,763.55 and 169,759.05 is: 254,422.28
Step by Step Solution
- Step 1: Write the proportion equation
319,447.05 : 478,763.55 = 169,759.05 : x - Step 2: Convert to fraction form
319,447.05/478,763.55 = 169,759.05/x - Step 3: Cross multiply
319,447.05x = 478,763.55 × 169,759.05 - Step 4: Simplify right side
319,447.05x = 81,274,445,422.63 - Step 5: Solve for x
x = 81,274,445,422.63/319,447.05 - Step 6: Final answer
x = 254,422.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.