Finding the Fourth Proportional to 455,240.10, 628,228.26 and 248,507.65
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Solution
The fourth proportional to 455,240.10, 628,228.26 and 248,507.65 is: 342,938.88
Step by Step Solution
- Step 1: Write the proportion equation
455,240.10 : 628,228.26 = 248,507.65 : x - Step 2: Convert to fraction form
455,240.10/628,228.26 = 248,507.65/x - Step 3: Cross multiply
455,240.10x = 628,228.26 × 248,507.65 - Step 4: Simplify right side
455,240.10x = 156,119,528,556.19 - Step 5: Solve for x
x = 156,119,528,556.19/455,240.10 - Step 6: Final answer
x = 342,938.88
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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.