Finding the Fourth Proportional to 299,417.10, 449,125.65 and 259,176.30
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Solution
The fourth proportional to 299,417.10, 449,125.65 and 259,176.30 is: 388,764.45
Step by Step Solution
- Step 1: Write the proportion equation
299,417.10 : 449,125.65 = 259,176.30 : x - Step 2: Convert to fraction form
299,417.10/449,125.65 = 259,176.30/x - Step 3: Cross multiply
299,417.10x = 449,125.65 × 259,176.30 - Step 4: Simplify right side
299,417.10x = 116,402,724,202.10 - Step 5: Solve for x
x = 116,402,724,202.10/299,417.10 - Step 6: Final answer
x = 388,764.45
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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.