Finding the Fourth Proportional to 280,902.53, 421,320.99 and 112,416.05
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Solution
The fourth proportional to 280,902.53, 421,320.99 and 112,416.05 is: 168,610.95
Step by Step Solution
- Step 1: Write the proportion equation
280,902.53 : 421,320.99 = 112,416.05 : x - Step 2: Convert to fraction form
280,902.53/421,320.99 = 112,416.05/x - Step 3: Cross multiply
280,902.53x = 421,320.99 × 112,416.05 - Step 4: Simplify right side
280,902.53x = 47,363,242,952.75 - Step 5: Solve for x
x = 47,363,242,952.75/280,902.53 - Step 6: Final answer
x = 168,610.95
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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.