Finding the Fourth Proportional to 224,405.24, 309,692.58 and 128,909.48
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Solution
The fourth proportional to 224,405.24, 309,692.58 and 128,909.48 is: 177,902.75
Step by Step Solution
- Step 1: Write the proportion equation
224,405.24 : 309,692.58 = 128,909.48 : x - Step 2: Convert to fraction form
224,405.24/309,692.58 = 128,909.48/x - Step 3: Cross multiply
224,405.24x = 309,692.58 × 128,909.48 - Step 4: Simplify right side
224,405.24x = 39,922,309,447.66 - Step 5: Solve for x
x = 39,922,309,447.66/224,405.24 - Step 6: Final answer
x = 177,902.75
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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.