Finding the Fourth Proportional to 406,380.92, 561,079.68 and 253,651.76
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Solution
The fourth proportional to 406,380.92, 561,079.68 and 253,651.76 is: 350,210.46
Step by Step Solution
- Step 1: Write the proportion equation
406,380.92 : 561,079.68 = 253,651.76 : x - Step 2: Convert to fraction form
406,380.92/561,079.68 = 253,651.76/x - Step 3: Cross multiply
406,380.92x = 561,079.68 × 253,651.76 - Step 4: Simplify right side
406,380.92x = 142,318,848,332.24 - Step 5: Solve for x
x = 142,318,848,332.24/406,380.92 - Step 6: Final answer
x = 350,210.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.