Finding the Fourth Proportional to 430,532.64, 645,850.80 and 142,354.08
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Solution
The fourth proportional to 430,532.64, 645,850.80 and 142,354.08 is: 213,548.26
Step by Step Solution
- Step 1: Write the proportion equation
430,532.64 : 645,850.80 = 142,354.08 : x - Step 2: Convert to fraction form
430,532.64/645,850.80 = 142,354.08/x - Step 3: Cross multiply
430,532.64x = 645,850.80 × 142,354.08 - Step 4: Simplify right side
430,532.64x = 91,939,496,451.26 - Step 5: Solve for x
x = 91,939,496,451.26/430,532.64 - Step 6: Final answer
x = 213,548.26
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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.