Finding the Fourth Proportional to 290,689.29, 401,147.73 and 169,848.99
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Solution
The fourth proportional to 290,689.29, 401,147.73 and 169,848.99 is: 234,389.57
Step by Step Solution
- Step 1: Write the proportion equation
290,689.29 : 401,147.73 = 169,848.99 : x - Step 2: Convert to fraction form
290,689.29/401,147.73 = 169,848.99/x - Step 3: Cross multiply
290,689.29x = 401,147.73 × 169,848.99 - Step 4: Simplify right side
290,689.29x = 68,134,536,781.29 - Step 5: Solve for x
x = 68,134,536,781.29/290,689.29 - Step 6: Final answer
x = 234,389.57
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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.