Finding the Fourth Proportional to 286,980.97, 430,405.71 and 84,524.71
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Solution
The fourth proportional to 286,980.97, 430,405.71 and 84,524.71 is: 126,767.70
Step by Step Solution
- Step 1: Write the proportion equation
286,980.97 : 430,405.71 = 84,524.71 : x - Step 2: Convert to fraction form
286,980.97/430,405.71 = 84,524.71/x - Step 3: Cross multiply
286,980.97x = 430,405.71 × 84,524.71 - Step 4: Simplify right side
286,980.97x = 36,379,917,820.09 - Step 5: Solve for x
x = 36,379,917,820.09/286,980.97 - Step 6: Final answer
x = 126,767.70
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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.