Finding the Fourth Proportional to 331,746.60, 497,619.90 and 121,405.80
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Solution
The fourth proportional to 331,746.60, 497,619.90 and 121,405.80 is: 182,108.70
Step by Step Solution
- Step 1: Write the proportion equation
331,746.60 : 497,619.90 = 121,405.80 : x - Step 2: Convert to fraction form
331,746.60/497,619.90 = 121,405.80/x - Step 3: Cross multiply
331,746.60x = 497,619.90 × 121,405.80 - Step 4: Simplify right side
331,746.60x = 60,413,942,055.42 - Step 5: Solve for x
x = 60,413,942,055.42/331,746.60 - Step 6: Final answer
x = 182,108.70
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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.