Finding the Fourth Proportional to 221,047.86, 331,374.80 and 102,654.62
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Solution
The fourth proportional to 221,047.86, 331,374.80 and 102,654.62 is: 153,890.45
Step by Step Solution
- Step 1: Write the proportion equation
221,047.86 : 331,374.80 = 102,654.62 : x - Step 2: Convert to fraction form
221,047.86/331,374.80 = 102,654.62/x - Step 3: Cross multiply
221,047.86x = 331,374.80 × 102,654.62 - Step 4: Simplify right side
221,047.86x = 34,017,154,171.58 - Step 5: Solve for x
x = 34,017,154,171.58/221,047.86 - Step 6: Final answer
x = 153,890.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.