Finding the Fourth Proportional to 239,307.10, 358,936.35 and 81,533.28
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Solution
The fourth proportional to 239,307.10, 358,936.35 and 81,533.28 is: 122,291.63
Step by Step Solution
- Step 1: Write the proportion equation
239,307.10 : 358,936.35 = 81,533.28 : x - Step 2: Convert to fraction form
239,307.10/358,936.35 = 81,533.28/x - Step 3: Cross multiply
239,307.10x = 358,936.35 × 81,533.28 - Step 4: Simplify right side
239,307.10x = 29,265,256,132.05 - Step 5: Solve for x
x = 29,265,256,132.05/239,307.10 - Step 6: Final answer
x = 122,291.63
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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.