Finding the Fourth Proportional to 239,317.60, 358,907.24 and 81,542.56
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Solution
The fourth proportional to 239,317.60, 358,907.24 and 81,542.56 is: 122,290.28
Step by Step Solution
- Step 1: Write the proportion equation
239,317.60 : 358,907.24 = 81,542.56 : x - Step 2: Convert to fraction form
239,317.60/358,907.24 = 81,542.56/x - Step 3: Cross multiply
239,317.60x = 358,907.24 × 81,542.56 - Step 4: Simplify right side
239,317.60x = 29,266,215,152.13 - Step 5: Solve for x
x = 29,266,215,152.13/239,317.60 - Step 6: Final answer
x = 122,290.28
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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.