Finding the Fourth Proportional to 399,318.84, 551,151.90 and 263,377.08
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Solution
The fourth proportional to 399,318.84, 551,151.90 and 263,377.08 is: 363,520.99
Step by Step Solution
- Step 1: Write the proportion equation
399,318.84 : 551,151.90 = 263,377.08 : x - Step 2: Convert to fraction form
399,318.84/551,151.90 = 263,377.08/x - Step 3: Cross multiply
399,318.84x = 551,151.90 × 263,377.08 - Step 4: Simplify right side
399,318.84x = 145,160,778,058.45 - Step 5: Solve for x
x = 145,160,778,058.45/399,318.84 - Step 6: Final answer
x = 363,520.99
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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.