Finding the Fourth Proportional to 286,862.92, 430,343.58 and 87,203.18
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Solution
The fourth proportional to 286,862.92, 430,343.58 and 87,203.18 is: 130,819.73
Step by Step Solution
- Step 1: Write the proportion equation
286,862.92 : 430,343.58 = 87,203.18 : x - Step 2: Convert to fraction form
286,862.92/430,343.58 = 87,203.18/x - Step 3: Cross multiply
286,862.92x = 430,343.58 × 87,203.18 - Step 4: Simplify right side
286,862.92x = 37,527,330,071.46 - Step 5: Solve for x
x = 37,527,330,071.46/286,862.92 - Step 6: Final answer
x = 130,819.73
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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.