Finding the Fourth Proportional to 399,654.18, 551,506.41 and 218,372.31
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Solution
The fourth proportional to 399,654.18, 551,506.41 and 218,372.31 is: 301,344.85
Step by Step Solution
- Step 1: Write the proportion equation
399,654.18 : 551,506.41 = 218,372.31 : x - Step 2: Convert to fraction form
399,654.18/551,506.41 = 218,372.31/x - Step 3: Cross multiply
399,654.18x = 551,506.41 × 218,372.31 - Step 4: Simplify right side
399,654.18x = 120,433,728,731.51 - Step 5: Solve for x
x = 120,433,728,731.51/399,654.18 - Step 6: Final answer
x = 301,344.85
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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.