Finding the Fourth Proportional to 315,980.19, 474,090.00 and 189,708.62
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Solution
The fourth proportional to 315,980.19, 474,090.00 and 189,708.62 is: 284,634.79
Step by Step Solution
- Step 1: Write the proportion equation
315,980.19 : 474,090.00 = 189,708.62 : x - Step 2: Convert to fraction form
315,980.19/474,090.00 = 189,708.62/x - Step 3: Cross multiply
315,980.19x = 474,090.00 × 189,708.62 - Step 4: Simplify right side
315,980.19x = 89,938,956,573.94 - Step 5: Solve for x
x = 89,938,956,573.94/315,980.19 - Step 6: Final answer
x = 284,634.79
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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.