Finding the Fourth Proportional to 253,422.13, 349,722.54 and 140,252.17
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Solution
The fourth proportional to 253,422.13, 349,722.54 and 140,252.17 is: 193,547.99
Step by Step Solution
- Step 1: Write the proportion equation
253,422.13 : 349,722.54 = 140,252.17 : x - Step 2: Convert to fraction form
253,422.13/349,722.54 = 140,252.17/x - Step 3: Cross multiply
253,422.13x = 349,722.54 × 140,252.17 - Step 4: Simplify right side
253,422.13x = 49,049,345,132.91 - Step 5: Solve for x
x = 49,049,345,132.91/253,422.13 - Step 6: Final answer
x = 193,547.99
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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.