Finding the Fourth Proportional to 230,448.29, 317,992.95 and 128,466.05
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Solution
The fourth proportional to 230,448.29, 317,992.95 and 128,466.05 is: 177,268.82
Step by Step Solution
- Step 1: Write the proportion equation
230,448.29 : 317,992.95 = 128,466.05 : x - Step 2: Convert to fraction form
230,448.29/317,992.95 = 128,466.05/x - Step 3: Cross multiply
230,448.29x = 317,992.95 × 128,466.05 - Step 4: Simplify right side
230,448.29x = 40,851,296,624.38 - Step 5: Solve for x
x = 40,851,296,624.38/230,448.29 - Step 6: Final answer
x = 177,268.82
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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.