Finding the Fourth Proportional to 210,233.20, 290,363.16 and 153,126.96
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Solution
The fourth proportional to 210,233.20, 290,363.16 and 153,126.96 is: 211,490.99
Step by Step Solution
- Step 1: Write the proportion equation
210,233.20 : 290,363.16 = 153,126.96 : x - Step 2: Convert to fraction form
210,233.20/290,363.16 = 153,126.96/x - Step 3: Cross multiply
210,233.20x = 290,363.16 × 153,126.96 - Step 4: Simplify right side
210,233.20x = 44,462,427,986.79 - Step 5: Solve for x
x = 44,462,427,986.79/210,233.20 - Step 6: Final answer
x = 211,490.99
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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.