Finding the Fourth Proportional to 486,643.68, 729,967.26 and 149,682.06
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Solution
The fourth proportional to 486,643.68, 729,967.26 and 149,682.06 is: 224,523.63
Step by Step Solution
- Step 1: Write the proportion equation
486,643.68 : 729,967.26 = 149,682.06 : x - Step 2: Convert to fraction form
486,643.68/729,967.26 = 149,682.06/x - Step 3: Cross multiply
486,643.68x = 729,967.26 × 149,682.06 - Step 4: Simplify right side
486,643.68x = 109,263,003,209.36 - Step 5: Solve for x
x = 109,263,003,209.36/486,643.68 - Step 6: Final answer
x = 224,523.63
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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.