Finding the Fourth Proportional to 239,424.21, 330,407.55 and 131,998.05
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Solution
The fourth proportional to 239,424.21, 330,407.55 and 131,998.05 is: 182,158.49
Step by Step Solution
- Step 1: Write the proportion equation
239,424.21 : 330,407.55 = 131,998.05 : x - Step 2: Convert to fraction form
239,424.21/330,407.55 = 131,998.05/x - Step 3: Cross multiply
239,424.21x = 330,407.55 × 131,998.05 - Step 4: Simplify right side
239,424.21x = 43,613,152,305.28 - Step 5: Solve for x
x = 43,613,152,305.28/239,424.21 - Step 6: Final answer
x = 182,158.49
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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.