Finding the Fourth Proportional to 348,538.13, 522,812.36 and 135,318.39
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Solution
The fourth proportional to 348,538.13, 522,812.36 and 135,318.39 is: 202,979.59
Step by Step Solution
- Step 1: Write the proportion equation
348,538.13 : 522,812.36 = 135,318.39 : x - Step 2: Convert to fraction form
348,538.13/522,812.36 = 135,318.39/x - Step 3: Cross multiply
348,538.13x = 522,812.36 × 135,318.39 - Step 4: Simplify right side
348,538.13x = 70,746,126,827.30 - Step 5: Solve for x
x = 70,746,126,827.30/348,538.13 - Step 6: Final answer
x = 202,979.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.