Finding the Fourth Proportional to 207,950.38, 286,970.96 and 112,457.08
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Solution
The fourth proportional to 207,950.38, 286,970.96 and 112,457.08 is: 155,190.46
Step by Step Solution
- Step 1: Write the proportion equation
207,950.38 : 286,970.96 = 112,457.08 : x - Step 2: Convert to fraction form
207,950.38/286,970.96 = 112,457.08/x - Step 3: Cross multiply
207,950.38x = 286,970.96 × 112,457.08 - Step 4: Simplify right side
207,950.38x = 32,271,915,995.52 - Step 5: Solve for x
x = 32,271,915,995.52/207,950.38 - Step 6: Final answer
x = 155,190.46
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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.