Finding the Fourth Proportional to 331,718.40, 497,707.20 and 121,372.80
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Solution
The fourth proportional to 331,718.40, 497,707.20 and 121,372.80 is: 182,106.62
Step by Step Solution
- Step 1: Write the proportion equation
331,718.40 : 497,707.20 = 121,372.80 : x - Step 2: Convert to fraction form
331,718.40/497,707.20 = 121,372.80/x - Step 3: Cross multiply
331,718.40x = 497,707.20 × 121,372.80 - Step 4: Simplify right side
331,718.40x = 60,408,116,444.16 - Step 5: Solve for x
x = 60,408,116,444.16/331,718.40 - Step 6: Final answer
x = 182,106.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.