Finding the Fourth Proportional to 257,764.80, 386,797.72 and 107,992.28
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Solution
The fourth proportional to 257,764.80, 386,797.72 and 107,992.28 is: 162,051.48
Step by Step Solution
- Step 1: Write the proportion equation
257,764.80 : 386,797.72 = 107,992.28 : x - Step 2: Convert to fraction form
257,764.80/386,797.72 = 107,992.28/x - Step 3: Cross multiply
257,764.80x = 386,797.72 × 107,992.28 - Step 4: Simplify right side
257,764.80x = 41,771,167,681.60 - Step 5: Solve for x
x = 41,771,167,681.60/257,764.80 - Step 6: Final answer
x = 162,051.48
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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.