Finding the Fourth Proportional to 230,926.01, 318,710.14 and 128,958.05
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Solution
The fourth proportional to 230,926.01, 318,710.14 and 128,958.05 is: 177,980.12
Step by Step Solution
- Step 1: Write the proportion equation
230,926.01 : 318,710.14 = 128,958.05 : x - Step 2: Convert to fraction form
230,926.01/318,710.14 = 128,958.05/x - Step 3: Cross multiply
230,926.01x = 318,710.14 × 128,958.05 - Step 4: Simplify right side
230,926.01x = 41,100,238,473.02 - Step 5: Solve for x
x = 41,100,238,473.02/230,926.01 - Step 6: Final answer
x = 177,980.12
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1.5x scale
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.