Finding the Fourth Proportional to 430,318.11, 645,460.62 and 114,772.26
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Solution
The fourth proportional to 430,318.11, 645,460.62 and 114,772.26 is: 172,153.97
Step by Step Solution
- Step 1: Write the proportion equation
430,318.11 : 645,460.62 = 114,772.26 : x - Step 2: Convert to fraction form
430,318.11/645,460.62 = 114,772.26/x - Step 3: Cross multiply
430,318.11x = 645,460.62 × 114,772.26 - Step 4: Simplify right side
430,318.11x = 74,080,970,871.10 - Step 5: Solve for x
x = 74,080,970,871.10/430,318.11 - Step 6: Final answer
x = 172,153.97
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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.