Finding the Fourth Proportional to 138,235.04, 207,309.36 and 44,721.44
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Solution
The fourth proportional to 138,235.04, 207,309.36 and 44,721.44 is: 67,068.18
Step by Step Solution
- Step 1: Write the proportion equation
138,235.04 : 207,309.36 = 44,721.44 : x - Step 2: Convert to fraction form
138,235.04/207,309.36 = 44,721.44/x - Step 3: Cross multiply
138,235.04x = 207,309.36 × 44,721.44 - Step 4: Simplify right side
138,235.04x = 9,271,173,104.68 - Step 5: Solve for x
x = 9,271,173,104.68/138,235.04 - Step 6: Final answer
x = 67,068.18
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1.5x scale
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.