Finding the Fourth Proportional to 197,421.06, 272,440.24 and 106,777.12
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Solution
The fourth proportional to 197,421.06, 272,440.24 and 106,777.12 is: 147,351.98
Step by Step Solution
- Step 1: Write the proportion equation
197,421.06 : 272,440.24 = 106,777.12 : x - Step 2: Convert to fraction form
197,421.06/272,440.24 = 106,777.12/x - Step 3: Cross multiply
197,421.06x = 272,440.24 × 106,777.12 - Step 4: Simplify right side
197,421.06x = 29,090,384,199.31 - Step 5: Solve for x
x = 29,090,384,199.31/197,421.06 - Step 6: Final answer
x = 147,351.98
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1.5x scale
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.