Finding the Fourth Proportional to 430,167.31, 645,368.79 and 130,657.66
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Solution
The fourth proportional to 430,167.31, 645,368.79 and 130,657.66 is: 196,022.28
Step by Step Solution
- Step 1: Write the proportion equation
430,167.31 : 645,368.79 = 130,657.66 : x - Step 2: Convert to fraction form
430,167.31/645,368.79 = 130,657.66/x - Step 3: Cross multiply
430,167.31x = 645,368.79 × 130,657.66 - Step 4: Simplify right side
430,167.31x = 84,322,375,938.43 - Step 5: Solve for x
x = 84,322,375,938.43/430,167.31 - Step 6: Final answer
x = 196,022.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.