Finding the Fourth Proportional to 195,422.64, 292,935.84 and 77,177.28
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Solution
The fourth proportional to 195,422.64, 292,935.84 and 77,177.28 is: 115,687.68
Step by Step Solution
- Step 1: Write the proportion equation
195,422.64 : 292,935.84 = 77,177.28 : x - Step 2: Convert to fraction form
195,422.64/292,935.84 = 77,177.28/x - Step 3: Cross multiply
195,422.64x = 292,935.84 × 77,177.28 - Step 4: Simplify right side
195,422.64x = 22,607,991,345.72 - Step 5: Solve for x
x = 22,607,991,345.72/195,422.64 - Step 6: Final answer
x = 115,687.68
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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.