Finding the Fourth Proportional to 455,455.80, 683,183.70 and 189,079.20
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Solution
The fourth proportional to 455,455.80, 683,183.70 and 189,079.20 is: 283,618.80
Step by Step Solution
- Step 1: Write the proportion equation
455,455.80 : 683,183.70 = 189,079.20 : x - Step 2: Convert to fraction form
455,455.80/683,183.70 = 189,079.20/x - Step 3: Cross multiply
455,455.80x = 683,183.70 × 189,079.20 - Step 4: Simplify right side
455,455.80x = 129,175,827,449.04 - Step 5: Solve for x
x = 129,175,827,449.04/455,455.80 - Step 6: Final answer
x = 283,618.80
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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.