Finding the Fourth Proportional to 458,230.50, 687,120.84 and 188,309.70
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Solution
The fourth proportional to 458,230.50, 687,120.84 and 188,309.70 is: 282,372.12
Step by Step Solution
- Step 1: Write the proportion equation
458,230.50 : 687,120.84 = 188,309.70 : x - Step 2: Convert to fraction form
458,230.50/687,120.84 = 188,309.70/x - Step 3: Cross multiply
458,230.50x = 687,120.84 × 188,309.70 - Step 4: Simplify right side
458,230.50x = 129,391,519,244.15 - Step 5: Solve for x
x = 129,391,519,244.15/458,230.50 - Step 6: Final answer
x = 282,372.12
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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.