Finding the Fourth Proportional to 210,324.24, 290,026.48 and 138,612.52
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Solution
The fourth proportional to 210,324.24, 290,026.48 and 138,612.52 is: 191,139.65
Step by Step Solution
- Step 1: Write the proportion equation
210,324.24 : 290,026.48 = 138,612.52 : x - Step 2: Convert to fraction form
210,324.24/290,026.48 = 138,612.52/x - Step 3: Cross multiply
210,324.24x = 290,026.48 × 138,612.52 - Step 4: Simplify right side
210,324.24x = 40,201,301,259.53 - Step 5: Solve for x
x = 40,201,301,259.53/210,324.24 - Step 6: Final answer
x = 191,139.65
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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.