Finding the Fourth Proportional to 238,707.18, 329,417.10 and 131,284.08
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Solution
The fourth proportional to 238,707.18, 329,417.10 and 131,284.08 is: 181,172.69
Step by Step Solution
- Step 1: Write the proportion equation
238,707.18 : 329,417.10 = 131,284.08 : x - Step 2: Convert to fraction form
238,707.18/329,417.10 = 131,284.08/x - Step 3: Cross multiply
238,707.18x = 329,417.10 × 131,284.08 - Step 4: Simplify right side
238,707.18x = 43,247,220,909.77 - Step 5: Solve for x
x = 43,247,220,909.77/238,707.18 - Step 6: Final answer
x = 181,172.69
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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.