Finding the Fourth Proportional to 292,623.15, 438,934.73 and 82,261.09
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Solution
The fourth proportional to 292,623.15, 438,934.73 and 82,261.09 is: 123,391.64
Step by Step Solution
- Step 1: Write the proportion equation
292,623.15 : 438,934.73 = 82,261.09 : x - Step 2: Convert to fraction form
292,623.15/438,934.73 = 82,261.09/x - Step 3: Cross multiply
292,623.15x = 438,934.73 × 82,261.09 - Step 4: Simplify right side
292,623.15x = 36,107,249,328.66 - Step 5: Solve for x
x = 36,107,249,328.66/292,623.15 - Step 6: Final answer
x = 123,391.64
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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.