Finding the Fourth Proportional to 470,131.68, 648,690.48 and 279,204.96
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Solution
The fourth proportional to 470,131.68, 648,690.48 and 279,204.96 is: 385,248.66
Step by Step Solution
- Step 1: Write the proportion equation
470,131.68 : 648,690.48 = 279,204.96 : x - Step 2: Convert to fraction form
470,131.68/648,690.48 = 279,204.96/x - Step 3: Cross multiply
470,131.68x = 648,690.48 × 279,204.96 - Step 4: Simplify right side
470,131.68x = 181,117,599,520.78 - Step 5: Solve for x
x = 181,117,599,520.78/470,131.68 - Step 6: Final answer
x = 385,248.66
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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.