Finding the Fourth Proportional to 230,246.06, 317,734.74 and 128,271.38
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Solution
The fourth proportional to 230,246.06, 317,734.74 and 128,271.38 is: 177,011.82
Step by Step Solution
- Step 1: Write the proportion equation
230,246.06 : 317,734.74 = 128,271.38 : x - Step 2: Convert to fraction form
230,246.06/317,734.74 = 128,271.38/x - Step 3: Cross multiply
230,246.06x = 317,734.74 × 128,271.38 - Step 4: Simplify right side
230,246.06x = 40,756,273,573.74 - Step 5: Solve for x
x = 40,756,273,573.74/230,246.06 - Step 6: Final answer
x = 177,011.82
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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.