Finding the Fourth Proportional to 285,114.42, 427,547.07 and 135,397.62
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Solution
The fourth proportional to 285,114.42, 427,547.07 and 135,397.62 is: 203,037.28
Step by Step Solution
- Step 1: Write the proportion equation
285,114.42 : 427,547.07 = 135,397.62 : x - Step 2: Convert to fraction form
285,114.42/427,547.07 = 135,397.62/x - Step 3: Cross multiply
285,114.42x = 427,547.07 × 135,397.62 - Step 4: Simplify right side
285,114.42x = 57,888,855,715.97 - Step 5: Solve for x
x = 57,888,855,715.97/285,114.42 - Step 6: Final answer
x = 203,037.28
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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.