Finding the Fourth Proportional to 188,630.68, 260,318.58 and 103,750.84
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Solution
The fourth proportional to 188,630.68, 260,318.58 and 103,750.84 is: 143,180.69
Step by Step Solution
- Step 1: Write the proportion equation
188,630.68 : 260,318.58 = 103,750.84 : x - Step 2: Convert to fraction form
188,630.68/260,318.58 = 103,750.84/x - Step 3: Cross multiply
188,630.68x = 260,318.58 × 103,750.84 - Step 4: Simplify right side
188,630.68x = 27,008,271,342.61 - Step 5: Solve for x
x = 27,008,271,342.61/188,630.68 - Step 6: Final answer
x = 143,180.69
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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.