Finding the Fourth Proportional to 399,465.24, 551,266.20 and 218,182.40
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Solution
The fourth proportional to 399,465.24, 551,266.20 and 218,182.40 is: 301,093.99
Step by Step Solution
- Step 1: Write the proportion equation
399,465.24 : 551,266.20 = 218,182.40 : x - Step 2: Convert to fraction form
399,465.24/551,266.20 = 218,182.40/x - Step 3: Cross multiply
399,465.24x = 551,266.20 × 218,182.40 - Step 4: Simplify right side
399,465.24x = 120,276,582,554.88 - Step 5: Solve for x
x = 120,276,582,554.88/399,465.24 - Step 6: Final answer
x = 301,093.99
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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.