Finding the Fourth Proportional to 242,316.11, 334,427.59 and 138,990.58
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Solution
The fourth proportional to 242,316.11, 334,427.59 and 138,990.58 is: 191,824.99
Step by Step Solution
- Step 1: Write the proportion equation
242,316.11 : 334,427.59 = 138,990.58 : x - Step 2: Convert to fraction form
242,316.11/334,427.59 = 138,990.58/x - Step 3: Cross multiply
242,316.11x = 334,427.59 × 138,990.58 - Step 4: Simplify right side
242,316.11x = 46,482,285,139.10 - Step 5: Solve for x
x = 46,482,285,139.10/242,316.11 - Step 6: Final answer
x = 191,824.99
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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.