Finding the Fourth Proportional to 280,356.42, 420,104.13 and 190,282.14
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Solution
The fourth proportional to 280,356.42, 420,104.13 and 190,282.14 is: 285,131.02
Step by Step Solution
- Step 1: Write the proportion equation
280,356.42 : 420,104.13 = 190,282.14 : x - Step 2: Convert to fraction form
280,356.42/420,104.13 = 190,282.14/x - Step 3: Cross multiply
280,356.42x = 420,104.13 × 190,282.14 - Step 4: Simplify right side
280,356.42x = 79,938,312,879.24 - Step 5: Solve for x
x = 79,938,312,879.24/280,356.42 - Step 6: Final answer
x = 285,131.02
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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.