Finding the Fourth Proportional to 399,596.68, 551,421.30 and 229,833.64
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Solution
The fourth proportional to 399,596.68, 551,421.30 and 229,833.64 is: 317,157.70
Step by Step Solution
- Step 1: Write the proportion equation
399,596.68 : 551,421.30 = 229,833.64 : x - Step 2: Convert to fraction form
399,596.68/551,421.30 = 229,833.64/x - Step 3: Cross multiply
399,596.68x = 551,421.30 × 229,833.64 - Step 4: Simplify right side
399,596.68x = 126,735,164,552.53 - Step 5: Solve for x
x = 126,735,164,552.53/399,596.68 - Step 6: Final answer
x = 317,157.70
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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.