Finding the Fourth Proportional to 287,657.16, 430,916.16 and 135,646.08
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Solution
The fourth proportional to 287,657.16, 430,916.16 and 135,646.08 is: 203,200.53
Step by Step Solution
- Step 1: Write the proportion equation
287,657.16 : 430,916.16 = 135,646.08 : x - Step 2: Convert to fraction form
287,657.16/430,916.16 = 135,646.08/x - Step 3: Cross multiply
287,657.16x = 430,916.16 × 135,646.08 - Step 4: Simplify right side
287,657.16x = 58,452,087,912.65 - Step 5: Solve for x
x = 58,452,087,912.65/287,657.16 - Step 6: Final answer
x = 203,200.53
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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.