Finding the Fourth Proportional to 197,423.91, 272,443.97 and 106,779.78
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Solution
The fourth proportional to 197,423.91, 272,443.97 and 106,779.78 is: 147,355.54
Step by Step Solution
- Step 1: Write the proportion equation
197,423.91 : 272,443.97 = 106,779.78 : x - Step 2: Convert to fraction form
197,423.91/272,443.97 = 106,779.78/x - Step 3: Cross multiply
197,423.91x = 272,443.97 × 106,779.78 - Step 4: Simplify right side
197,423.91x = 29,091,507,445.88 - Step 5: Solve for x
x = 29,091,507,445.88/197,423.91 - Step 6: Final answer
x = 147,355.54
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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.