Finding the Fourth Proportional to 230,334.96, 317,862.56 and 128,358.19
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Solution
The fourth proportional to 230,334.96, 317,862.56 and 128,358.19 is: 177,134.47
Step by Step Solution
- Step 1: Write the proportion equation
230,334.96 : 317,862.56 = 128,358.19 : x - Step 2: Convert to fraction form
230,334.96/317,862.56 = 128,358.19/x - Step 3: Cross multiply
230,334.96x = 317,862.56 × 128,358.19 - Step 4: Simplify right side
230,334.96x = 40,800,261,433.92 - Step 5: Solve for x
x = 40,800,261,433.92/230,334.96 - Step 6: Final answer
x = 177,134.47
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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.