Finding the Fourth Proportional to 306,655.84, 423,184.32 and 172,519.84
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Solution
The fourth proportional to 306,655.84, 423,184.32 and 172,519.84 is: 238,076.96
Step by Step Solution
- Step 1: Write the proportion equation
306,655.84 : 423,184.32 = 172,519.84 : x - Step 2: Convert to fraction form
306,655.84/423,184.32 = 172,519.84/x - Step 3: Cross multiply
306,655.84x = 423,184.32 × 172,519.84 - Step 4: Simplify right side
306,655.84x = 73,007,691,176.91 - Step 5: Solve for x
x = 73,007,691,176.91/306,655.84 - Step 6: Final answer
x = 238,076.96
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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.