Finding the Fourth Proportional to 230,246.28, 317,732.85 and 128,271.69
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Solution
The fourth proportional to 230,246.28, 317,732.85 and 128,271.69 is: 177,011.02
Step by Step Solution
- Step 1: Write the proportion equation
230,246.28 : 317,732.85 = 128,271.69 : x - Step 2: Convert to fraction form
230,246.28/317,732.85 = 128,271.69/x - Step 3: Cross multiply
230,246.28x = 317,732.85 × 128,271.69 - Step 4: Simplify right side
230,246.28x = 40,756,129,638.02 - Step 5: Solve for x
x = 40,756,129,638.02/230,246.28 - Step 6: Final answer
x = 177,011.02
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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.