Finding the Fourth Proportional to 286,978.44, 430,482.96 and 87,283.56
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Solution
The fourth proportional to 286,978.44, 430,482.96 and 87,283.56 is: 130,929.99
Step by Step Solution
- Step 1: Write the proportion equation
286,978.44 : 430,482.96 = 87,283.56 : x - Step 2: Convert to fraction form
286,978.44/430,482.96 = 87,283.56/x - Step 3: Cross multiply
286,978.44x = 430,482.96 × 87,283.56 - Step 4: Simplify right side
286,978.44x = 37,574,085,268.14 - Step 5: Solve for x
x = 37,574,085,268.14/286,978.44 - Step 6: Final answer
x = 130,929.99
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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.