Finding the Fourth Proportional to 243,118.80, 364,707.30 and 74,617.08
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Solution
The fourth proportional to 243,118.80, 364,707.30 and 74,617.08 is: 111,934.55
Step by Step Solution
- Step 1: Write the proportion equation
243,118.80 : 364,707.30 = 74,617.08 : x - Step 2: Convert to fraction form
243,118.80/364,707.30 = 74,617.08/x - Step 3: Cross multiply
243,118.80x = 364,707.30 × 74,617.08 - Step 4: Simplify right side
243,118.80x = 27,213,393,780.68 - Step 5: Solve for x
x = 27,213,393,780.68/243,118.80 - Step 6: Final answer
x = 111,934.55
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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.