Finding the Fourth Proportional to 197,420.68, 272,440.51 and 106,776.62
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Solution
The fourth proportional to 197,420.68, 272,440.51 and 106,776.62 is: 147,351.72
Step by Step Solution
- Step 1: Write the proportion equation
197,420.68 : 272,440.51 = 106,776.62 : x - Step 2: Convert to fraction form
197,420.68/272,440.51 = 106,776.62/x - Step 3: Cross multiply
197,420.68x = 272,440.51 × 106,776.62 - Step 4: Simplify right side
197,420.68x = 29,090,276,274.99 - Step 5: Solve for x
x = 29,090,276,274.99/197,420.68 - Step 6: Final answer
x = 147,351.72
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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.