Finding the Fourth Proportional to 242,701.69, 334,939.80 and 135,272.49
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Solution
The fourth proportional to 242,701.69, 334,939.80 and 135,272.49 is: 186,682.43
Step by Step Solution
- Step 1: Write the proportion equation
242,701.69 : 334,939.80 = 135,272.49 : x - Step 2: Convert to fraction form
242,701.69/334,939.80 = 135,272.49/x - Step 3: Cross multiply
242,701.69x = 334,939.80 × 135,272.49 - Step 4: Simplify right side
242,701.69x = 45,308,140,746.10 - Step 5: Solve for x
x = 45,308,140,746.10/242,701.69 - Step 6: Final answer
x = 186,682.43
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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.