Finding the Fourth Proportional to 236,758.06, 326,720.68 and 129,328.57
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Solution
The fourth proportional to 236,758.06, 326,720.68 and 129,328.57 is: 178,470.45
Step by Step Solution
- Step 1: Write the proportion equation
236,758.06 : 326,720.68 = 129,328.57 : x - Step 2: Convert to fraction form
236,758.06/326,720.68 = 129,328.57/x - Step 3: Cross multiply
236,758.06x = 326,720.68 × 129,328.57 - Step 4: Simplify right side
236,758.06x = 42,254,318,333.83 - Step 5: Solve for x
x = 42,254,318,333.83/236,758.06 - Step 6: Final answer
x = 178,470.45
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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.