Finding the Fourth Proportional to 228,606.14, 315,280.99 and 137,942.84
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Solution
The fourth proportional to 228,606.14, 315,280.99 and 137,942.84 is: 190,243.17
Step by Step Solution
- Step 1: Write the proportion equation
228,606.14 : 315,280.99 = 137,942.84 : x - Step 2: Convert to fraction form
228,606.14/315,280.99 = 137,942.84/x - Step 3: Cross multiply
228,606.14x = 315,280.99 × 137,942.84 - Step 4: Simplify right side
228,606.14x = 43,490,756,119.24 - Step 5: Solve for x
x = 43,490,756,119.24/228,606.14 - Step 6: Final answer
x = 190,243.17
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1.5x scale
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.