Finding the Fourth Proportional to 485,129.68, 727,643.64 and 130,180.08
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Solution
The fourth proportional to 485,129.68, 727,643.64 and 130,180.08 is: 195,256.47
Step by Step Solution
- Step 1: Write the proportion equation
485,129.68 : 727,643.64 = 130,180.08 : x - Step 2: Convert to fraction form
485,129.68/727,643.64 = 130,180.08/x - Step 3: Cross multiply
485,129.68x = 727,643.64 × 130,180.08 - Step 4: Simplify right side
485,129.68x = 94,724,707,266.69 - Step 5: Solve for x
x = 94,724,707,266.69/485,129.68 - Step 6: Final answer
x = 195,256.47
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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.