Finding the Fourth Proportional to 358,855.20, 539,449.20 and 307,533.60
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Solution
The fourth proportional to 358,855.20, 539,449.20 and 307,533.60 is: 462,299.99
Step by Step Solution
- Step 1: Write the proportion equation
358,855.20 : 539,449.20 = 307,533.60 : x - Step 2: Convert to fraction form
358,855.20/539,449.20 = 307,533.60/x - Step 3: Cross multiply
358,855.20x = 539,449.20 × 307,533.60 - Step 4: Simplify right side
358,855.20x = 165,898,754,493.12 - Step 5: Solve for x
x = 165,898,754,493.12/358,855.20 - Step 6: Final answer
x = 462,299.99
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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.