Finding the Fourth Proportional to 197,209.79, 272,149.46 and 106,565.75
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Solution
The fourth proportional to 197,209.79, 272,149.46 and 106,565.75 is: 147,060.70
Step by Step Solution
- Step 1: Write the proportion equation
197,209.79 : 272,149.46 = 106,565.75 : x - Step 2: Convert to fraction form
197,209.79/272,149.46 = 106,565.75/x - Step 3: Cross multiply
197,209.79x = 272,149.46 × 106,565.75 - Step 4: Simplify right side
197,209.79x = 29,001,809,956.25 - Step 5: Solve for x
x = 29,001,809,956.25/197,209.79 - Step 6: Final answer
x = 147,060.70
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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.