Finding the Fourth Proportional to 236,762.18, 326,739.66 and 129,342.20
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Solution
The fourth proportional to 236,762.18, 326,739.66 and 129,342.20 is: 178,496.53
Step by Step Solution
- Step 1: Write the proportion equation
236,762.18 : 326,739.66 = 129,342.20 : x - Step 2: Convert to fraction form
236,762.18/326,739.66 = 129,342.20/x - Step 3: Cross multiply
236,762.18x = 326,739.66 × 129,342.20 - Step 4: Simplify right side
236,762.18x = 42,261,226,451.65 - Step 5: Solve for x
x = 42,261,226,451.65/236,762.18 - Step 6: Final answer
x = 178,496.53
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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.