Finding the Fourth Proportional to 230,335.34, 317,863.07 and 128,358.56
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Solution
The fourth proportional to 230,335.34, 317,863.07 and 128,358.56 is: 177,134.99
Step by Step Solution
- Step 1: Write the proportion equation
230,335.34 : 317,863.07 = 128,358.56 : x - Step 2: Convert to fraction form
230,335.34/317,863.07 = 128,358.56/x - Step 3: Cross multiply
230,335.34x = 317,863.07 × 128,358.56 - Step 4: Simplify right side
230,335.34x = 40,800,446,576.59 - Step 5: Solve for x
x = 40,800,446,576.59/230,335.34 - Step 6: Final answer
x = 177,134.99
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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.