Finding the Fourth Proportional to 224,612.47, 309,965.87 and 122,638.81
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Solution
The fourth proportional to 224,612.47, 309,965.87 and 122,638.81 is: 169,241.92
Step by Step Solution
- Step 1: Write the proportion equation
224,612.47 : 309,965.87 = 122,638.81 : x - Step 2: Convert to fraction form
224,612.47/309,965.87 = 122,638.81/x - Step 3: Cross multiply
224,612.47x = 309,965.87 × 122,638.81 - Step 4: Simplify right side
224,612.47x = 38,013,844,824.22 - Step 5: Solve for x
x = 38,013,844,824.22/224,612.47 - Step 6: Final answer
x = 169,241.92
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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.