Finding the Fourth Proportional to 242,910.21, 335,216.61 and 135,487.14
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Solution
The fourth proportional to 242,910.21, 335,216.61 and 135,487.14 is: 186,972.54
Step by Step Solution
- Step 1: Write the proportion equation
242,910.21 : 335,216.61 = 135,487.14 : x - Step 2: Convert to fraction form
242,910.21/335,216.61 = 135,487.14/x - Step 3: Cross multiply
242,910.21x = 335,216.61 × 135,487.14 - Step 4: Simplify right side
242,910.21x = 45,417,539,769.40 - Step 5: Solve for x
x = 45,417,539,769.40/242,910.21 - Step 6: Final answer
x = 186,972.54
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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.