Finding the Fourth Proportional to 399,555.68, 551,403.62 and 229,789.96
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Solution
The fourth proportional to 399,555.68, 551,403.62 and 229,789.96 is: 317,119.80
Step by Step Solution
- Step 1: Write the proportion equation
399,555.68 : 551,403.62 = 229,789.96 : x - Step 2: Convert to fraction form
399,555.68/551,403.62 = 229,789.96/x - Step 3: Cross multiply
399,555.68x = 551,403.62 × 229,789.96 - Step 4: Simplify right side
399,555.68x = 126,707,015,783.66 - Step 5: Solve for x
x = 126,707,015,783.66/399,555.68 - Step 6: Final answer
x = 317,119.80
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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.