Finding the Fourth Proportional to 430,342.87, 645,078.39 and 216,464.53
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Solution
The fourth proportional to 430,342.87, 645,078.39 and 216,464.53 is: 324,477.53
Step by Step Solution
- Step 1: Write the proportion equation
430,342.87 : 645,078.39 = 216,464.53 : x - Step 2: Convert to fraction form
430,342.87/645,078.39 = 216,464.53/x - Step 3: Cross multiply
430,342.87x = 645,078.39 × 216,464.53 - Step 4: Simplify right side
430,342.87x = 139,636,590,504.51 - Step 5: Solve for x
x = 139,636,590,504.51/430,342.87 - Step 6: Final answer
x = 324,477.53
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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.