Finding the Fourth Proportional to 311,888.01, 430,373.16 and 230,259.70
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Solution
The fourth proportional to 311,888.01, 430,373.16 and 230,259.70 is: 317,734.54
Step by Step Solution
- Step 1: Write the proportion equation
311,888.01 : 430,373.16 = 230,259.70 : x - Step 2: Convert to fraction form
311,888.01/430,373.16 = 230,259.70/x - Step 3: Cross multiply
311,888.01x = 430,373.16 × 230,259.70 - Step 4: Simplify right side
311,888.01x = 99,097,594,709.65 - Step 5: Solve for x
x = 99,097,594,709.65/311,888.01 - Step 6: Final answer
x = 317,734.54
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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.