Finding the Fourth Proportional to 280,477.99, 420,870.08 and 162,379.99
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Solution
The fourth proportional to 280,477.99, 420,870.08 and 162,379.99 is: 243,658.62
Step by Step Solution
- Step 1: Write the proportion equation
280,477.99 : 420,870.08 = 162,379.99 : x - Step 2: Convert to fraction form
280,477.99/420,870.08 = 162,379.99/x - Step 3: Cross multiply
280,477.99x = 420,870.08 × 162,379.99 - Step 4: Simplify right side
280,477.99x = 68,340,879,400.35 - Step 5: Solve for x
x = 68,340,879,400.35/280,477.99 - Step 6: Final answer
x = 243,658.62
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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.