Finding the Fourth Proportional to 248,130.10, 372,195.15 and 153,651.70
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Solution
The fourth proportional to 248,130.10, 372,195.15 and 153,651.70 is: 230,477.55
Step by Step Solution
- Step 1: Write the proportion equation
248,130.10 : 372,195.15 = 153,651.70 : x - Step 2: Convert to fraction form
248,130.10/372,195.15 = 153,651.70/x - Step 3: Cross multiply
248,130.10x = 372,195.15 × 153,651.70 - Step 4: Simplify right side
248,130.10x = 57,188,417,529.26 - Step 5: Solve for x
x = 57,188,417,529.26/248,130.10 - Step 6: Final answer
x = 230,477.55
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.