Finding the Fourth Proportional to 210,631.20, 290,637.09 and 119,988.96
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Solution
The fourth proportional to 210,631.20, 290,637.09 and 119,988.96 is: 165,565.42
Step by Step Solution
- Step 1: Write the proportion equation
210,631.20 : 290,637.09 = 119,988.96 : x - Step 2: Convert to fraction form
210,631.20/290,637.09 = 119,988.96/x - Step 3: Cross multiply
210,631.20x = 290,637.09 × 119,988.96 - Step 4: Simplify right side
210,631.20x = 34,873,242,166.53 - Step 5: Solve for x
x = 34,873,242,166.53/210,631.20 - Step 6: Final answer
x = 165,565.42
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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.