Finding the Fourth Proportional to 163,783.12, 245,677.76 and 51,461.28
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Solution
The fourth proportional to 163,783.12, 245,677.76 and 51,461.28 is: 77,192.89
Step by Step Solution
- Step 1: Write the proportion equation
163,783.12 : 245,677.76 = 51,461.28 : x - Step 2: Convert to fraction form
163,783.12/245,677.76 = 51,461.28/x - Step 3: Cross multiply
163,783.12x = 245,677.76 × 51,461.28 - Step 4: Simplify right side
163,783.12x = 12,642,891,997.13 - Step 5: Solve for x
x = 12,642,891,997.13/163,783.12 - Step 6: Final answer
x = 77,192.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.