Finding the Fourth Proportional to 485,128.68, 727,642.14 and 130,179.08
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Solution
The fourth proportional to 485,128.68, 727,642.14 and 130,179.08 is: 195,254.97
Step by Step Solution
- Step 1: Write the proportion equation
485,128.68 : 727,642.14 = 130,179.08 : x - Step 2: Convert to fraction form
485,128.68/727,642.14 = 130,179.08/x - Step 3: Cross multiply
485,128.68x = 727,642.14 × 130,179.08 - Step 4: Simplify right side
485,128.68x = 94,723,784,354.43 - Step 5: Solve for x
x = 94,723,784,354.43/485,128.68 - Step 6: Final answer
x = 195,254.97
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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.