Finding the Fourth Proportional to 196,854.15, 271,658.64 and 107,430.15
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Solution
The fourth proportional to 196,854.15, 271,658.64 and 107,430.15 is: 148,253.56
Step by Step Solution
- Step 1: Write the proportion equation
196,854.15 : 271,658.64 = 107,430.15 : x - Step 2: Convert to fraction form
196,854.15/271,658.64 = 107,430.15/x - Step 3: Cross multiply
196,854.15x = 271,658.64 × 107,430.15 - Step 4: Simplify right side
196,854.15x = 29,184,328,444.00 - Step 5: Solve for x
x = 29,184,328,444.00/196,854.15 - Step 6: Final answer
x = 148,253.56
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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.