Finding the Fourth Proportional to 306,988.08, 423,637.12 and 171,021.84
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Solution
The fourth proportional to 306,988.08, 423,637.12 and 171,021.84 is: 236,006.56
Step by Step Solution
- Step 1: Write the proportion equation
306,988.08 : 423,637.12 = 171,021.84 : x - Step 2: Convert to fraction form
306,988.08/423,637.12 = 171,021.84/x - Step 3: Cross multiply
306,988.08x = 423,637.12 × 171,021.84 - Step 4: Simplify right side
306,988.08x = 72,451,199,754.70 - Step 5: Solve for x
x = 72,451,199,754.70/306,988.08 - Step 6: Final answer
x = 236,006.56
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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.