Finding the Fourth Proportional to 224,292.24, 309,512.88 and 128,731.68
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Solution
The fourth proportional to 224,292.24, 309,512.88 and 128,731.68 is: 177,643.74
Step by Step Solution
- Step 1: Write the proportion equation
224,292.24 : 309,512.88 = 128,731.68 : x - Step 2: Convert to fraction form
224,292.24/309,512.88 = 128,731.68/x - Step 3: Cross multiply
224,292.24x = 309,512.88 × 128,731.68 - Step 4: Simplify right side
224,292.24x = 39,844,113,024.04 - Step 5: Solve for x
x = 39,844,113,024.04/224,292.24 - Step 6: Final answer
x = 177,643.74
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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.