Finding the Fourth Proportional to 399,315.84, 551,147.76 and 263,374.08
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Solution
The fourth proportional to 399,315.84, 551,147.76 and 263,374.08 is: 363,516.84
Step by Step Solution
- Step 1: Write the proportion equation
399,315.84 : 551,147.76 = 263,374.08 : x - Step 2: Convert to fraction form
399,315.84/551,147.76 = 263,374.08/x - Step 3: Cross multiply
399,315.84x = 551,147.76 × 263,374.08 - Step 4: Simplify right side
399,315.84x = 145,158,034,234.06 - Step 5: Solve for x
x = 145,158,034,234.06/399,315.84 - Step 6: Final answer
x = 363,516.84
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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.