Finding the Fourth Proportional to 230,377.16, 317,881.94 and 128,380.26
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Solution
The fourth proportional to 230,377.16, 317,881.94 and 128,380.26 is: 177,143.28
Step by Step Solution
- Step 1: Write the proportion equation
230,377.16 : 317,881.94 = 128,380.26 : x - Step 2: Convert to fraction form
230,377.16/317,881.94 = 128,380.26/x - Step 3: Cross multiply
230,377.16x = 317,881.94 × 128,380.26 - Step 4: Simplify right side
230,377.16x = 40,809,766,259.31 - Step 5: Solve for x
x = 40,809,766,259.31/230,377.16 - Step 6: Final answer
x = 177,143.28
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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.