Finding the Fourth Proportional to 243,807.67, 336,438.75 and 136,359.10
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Solution
The fourth proportional to 243,807.67, 336,438.75 and 136,359.10 is: 188,166.70
Step by Step Solution
- Step 1: Write the proportion equation
243,807.67 : 336,438.75 = 136,359.10 : x - Step 2: Convert to fraction form
243,807.67/336,438.75 = 136,359.10/x - Step 3: Cross multiply
243,807.67x = 336,438.75 × 136,359.10 - Step 4: Simplify right side
243,807.67x = 45,876,485,155.13 - Step 5: Solve for x
x = 45,876,485,155.13/243,807.67 - Step 6: Final answer
x = 188,166.70
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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.