Finding the Fourth Proportional to 158,227.08, 218,310.19 and 90,219.26
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Solution
The fourth proportional to 158,227.08, 218,310.19 and 90,219.26 is: 124,477.95
Step by Step Solution
- Step 1: Write the proportion equation
158,227.08 : 218,310.19 = 90,219.26 : x - Step 2: Convert to fraction form
158,227.08/218,310.19 = 90,219.26/x - Step 3: Cross multiply
158,227.08x = 218,310.19 × 90,219.26 - Step 4: Simplify right side
158,227.08x = 19,695,782,700.71 - Step 5: Solve for x
x = 19,695,782,700.71/158,227.08 - Step 6: Final answer
x = 124,477.95
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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.