Finding the Fourth Proportional to 455,455.80, 683,183.70 and 155,909.70
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Solution
The fourth proportional to 455,455.80, 683,183.70 and 155,909.70 is: 233,864.55
Step by Step Solution
- Step 1: Write the proportion equation
455,455.80 : 683,183.70 = 155,909.70 : x - Step 2: Convert to fraction form
455,455.80/683,183.70 = 155,909.70/x - Step 3: Cross multiply
455,455.80x = 683,183.70 × 155,909.70 - Step 4: Simplify right side
455,455.80x = 106,514,965,711.89 - Step 5: Solve for x
x = 106,514,965,711.89/455,455.80 - Step 6: Final answer
x = 233,864.55
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1.5x scale
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.