Finding the Fourth Proportional to 207,840.19, 286,819.33 and 112,346.88
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Solution
The fourth proportional to 207,840.19, 286,819.33 and 112,346.88 is: 155,038.62
Step by Step Solution
- Step 1: Write the proportion equation
207,840.19 : 286,819.33 = 112,346.88 : x - Step 2: Convert to fraction form
207,840.19/286,819.33 = 112,346.88/x - Step 3: Cross multiply
207,840.19x = 286,819.33 × 112,346.88 - Step 4: Simplify right side
207,840.19x = 32,223,256,287.46 - Step 5: Solve for x
x = 32,223,256,287.46/207,840.19 - Step 6: Final answer
x = 155,038.62
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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.