Finding the Fourth Proportional to 359,790.12, 539,586.63 and 135,133.18
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Solution
The fourth proportional to 359,790.12, 539,586.63 and 135,133.18 is: 202,662.75
Step by Step Solution
- Step 1: Write the proportion equation
359,790.12 : 539,586.63 = 135,133.18 : x - Step 2: Convert to fraction form
359,790.12/539,586.63 = 135,133.18/x - Step 3: Cross multiply
359,790.12x = 539,586.63 × 135,133.18 - Step 4: Simplify right side
359,790.12x = 72,916,055,848.42 - Step 5: Solve for x
x = 72,916,055,848.42/359,790.12 - Step 6: Final answer
x = 202,662.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.