Finding the Fourth Proportional to 149,489.91, 206,292.24 and 81,507.02
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Solution
The fourth proportional to 149,489.91, 206,292.24 and 81,507.02 is: 112,477.59
Step by Step Solution
- Step 1: Write the proportion equation
149,489.91 : 206,292.24 = 81,507.02 : x - Step 2: Convert to fraction form
149,489.91/206,292.24 = 81,507.02/x - Step 3: Cross multiply
149,489.91x = 206,292.24 × 81,507.02 - Step 4: Simplify right side
149,489.91x = 16,814,264,700.06 - Step 5: Solve for x
x = 16,814,264,700.06/149,489.91 - Step 6: Final answer
x = 112,477.59
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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.