Finding the Fourth Proportional to 343,649.12, 474,212.99 and 190,677.61
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Solution
The fourth proportional to 343,649.12, 474,212.99 and 190,677.61 is: 263,122.45
Step by Step Solution
- Step 1: Write the proportion equation
343,649.12 : 474,212.99 = 190,677.61 : x - Step 2: Convert to fraction form
343,649.12/474,212.99 = 190,677.61/x - Step 3: Cross multiply
343,649.12x = 474,212.99 × 190,677.61 - Step 4: Simplify right side
343,649.12x = 90,421,799,564.15 - Step 5: Solve for x
x = 90,421,799,564.15/343,649.12 - Step 6: Final answer
x = 263,122.45
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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.