Finding the Fourth Proportional to 197,385.16, 272,391.63 and 106,741.12
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Solution
The fourth proportional to 197,385.16, 272,391.63 and 106,741.12 is: 147,302.80
Step by Step Solution
- Step 1: Write the proportion equation
197,385.16 : 272,391.63 = 106,741.12 : x - Step 2: Convert to fraction form
197,385.16/272,391.63 = 106,741.12/x - Step 3: Cross multiply
197,385.16x = 272,391.63 × 106,741.12 - Step 4: Simplify right side
197,385.16x = 29,075,386,302.87 - Step 5: Solve for x
x = 29,075,386,302.87/197,385.16 - Step 6: Final answer
x = 147,302.80
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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.