Finding the Fourth Proportional to 239,777.72, 330,690.12 and 144,266.58
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Solution
The fourth proportional to 239,777.72, 330,690.12 and 144,266.58 is: 198,965.66
Step by Step Solution
- Step 1: Write the proportion equation
239,777.72 : 330,690.12 = 144,266.58 : x - Step 2: Convert to fraction form
239,777.72/330,690.12 = 144,266.58/x - Step 3: Cross multiply
239,777.72x = 330,690.12 × 144,266.58 - Step 4: Simplify right side
239,777.72x = 47,707,532,652.19 - Step 5: Solve for x
x = 47,707,532,652.19/239,777.72 - Step 6: Final answer
x = 198,965.66
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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.