Finding the Fourth Proportional to 230,363.36, 317,927.26 and 128,398.12
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Solution
The fourth proportional to 230,363.36, 317,927.26 and 128,398.12 is: 177,203.80
Step by Step Solution
- Step 1: Write the proportion equation
230,363.36 : 317,927.26 = 128,398.12 : x - Step 2: Convert to fraction form
230,363.36/317,927.26 = 128,398.12/x - Step 3: Cross multiply
230,363.36x = 317,927.26 × 128,398.12 - Step 4: Simplify right side
230,363.36x = 40,821,262,480.75 - Step 5: Solve for x
x = 40,821,262,480.75/230,363.36 - Step 6: Final answer
x = 177,203.80
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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.