Finding the Fourth Proportional to 197,420.18, 272,439.82 and 106,776.12
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Solution
The fourth proportional to 197,420.18, 272,439.82 and 106,776.12 is: 147,351.02
Step by Step Solution
- Step 1: Write the proportion equation
197,420.18 : 272,439.82 = 106,776.12 : x - Step 2: Convert to fraction form
197,420.18/272,439.82 = 106,776.12/x - Step 3: Cross multiply
197,420.18x = 272,439.82 × 106,776.12 - Step 4: Simplify right side
197,420.18x = 29,090,065,935.13 - Step 5: Solve for x
x = 29,090,065,935.13/197,420.18 - Step 6: Final answer
x = 147,351.02
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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.