Finding the Fourth Proportional to 246,696.81, 340,439.18 and 139,264.53
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Solution
The fourth proportional to 246,696.81, 340,439.18 and 139,264.53 is: 192,183.68
Step by Step Solution
- Step 1: Write the proportion equation
246,696.81 : 340,439.18 = 139,264.53 : x - Step 2: Convert to fraction form
246,696.81/340,439.18 = 139,264.53/x - Step 3: Cross multiply
246,696.81x = 340,439.18 × 139,264.53 - Step 4: Simplify right side
246,696.81x = 47,411,101,699.96 - Step 5: Solve for x
x = 47,411,101,699.96/246,696.81 - Step 6: Final answer
x = 192,183.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.