Finding the Fourth Proportional to 243,006.13, 335,358.17 and 135,585.55
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Solution
The fourth proportional to 243,006.13, 335,358.17 and 135,585.55 is: 187,113.48
Step by Step Solution
- Step 1: Write the proportion equation
243,006.13 : 335,358.17 = 135,585.55 : x - Step 2: Convert to fraction form
243,006.13/335,358.17 = 135,585.55/x - Step 3: Cross multiply
243,006.13x = 335,358.17 × 135,585.55 - Step 4: Simplify right side
243,006.13x = 45,469,721,926.44 - Step 5: Solve for x
x = 45,469,721,926.44/243,006.13 - Step 6: Final answer
x = 187,113.48
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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.