Finding the Fourth Proportional to 224,102.68, 309,261.76 and 122,128.18
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Solution
The fourth proportional to 224,102.68, 309,261.76 and 122,128.18 is: 168,536.92
Step by Step Solution
- Step 1: Write the proportion equation
224,102.68 : 309,261.76 = 122,128.18 : x - Step 2: Convert to fraction form
224,102.68/309,261.76 = 122,128.18/x - Step 3: Cross multiply
224,102.68x = 309,261.76 × 122,128.18 - Step 4: Simplify right side
224,102.68x = 37,769,575,892.40 - Step 5: Solve for x
x = 37,769,575,892.40/224,102.68 - Step 6: Final answer
x = 168,536.92
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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.