Finding the Fourth Proportional to 286,311.40, 429,812.70 and 284,237.80
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Solution
The fourth proportional to 286,311.40, 429,812.70 and 284,237.80 is: 426,699.80
Step by Step Solution
- Step 1: Write the proportion equation
286,311.40 : 429,812.70 = 284,237.80 : x - Step 2: Convert to fraction form
286,311.40/429,812.70 = 284,237.80/x - Step 3: Cross multiply
286,311.40x = 429,812.70 × 284,237.80 - Step 4: Simplify right side
286,311.40x = 122,169,016,260.06 - Step 5: Solve for x
x = 122,169,016,260.06/286,311.40 - Step 6: Final answer
x = 426,699.80
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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.