Finding the Fourth Proportional to 242,943.80, 335,262.98 and 135,511.08
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Solution
The fourth proportional to 242,943.80, 335,262.98 and 135,511.08 is: 187,005.59
Step by Step Solution
- Step 1: Write the proportion equation
242,943.80 : 335,262.98 = 135,511.08 : x - Step 2: Convert to fraction form
242,943.80/335,262.98 = 135,511.08/x - Step 3: Cross multiply
242,943.80x = 335,262.98 × 135,511.08 - Step 4: Simplify right side
242,943.80x = 45,431,848,503.82 - Step 5: Solve for x
x = 45,431,848,503.82/242,943.80 - Step 6: Final answer
x = 187,005.59
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1.5x scale
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.