Finding the Fourth Proportional to 331,140.31, 457,036.62 and 187,913.68
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Solution
The fourth proportional to 331,140.31, 457,036.62 and 187,913.68 is: 259,356.62
Step by Step Solution
- Step 1: Write the proportion equation
331,140.31 : 457,036.62 = 187,913.68 : x - Step 2: Convert to fraction form
331,140.31/457,036.62 = 187,913.68/x - Step 3: Cross multiply
331,140.31x = 457,036.62 × 187,913.68 - Step 4: Simplify right side
331,140.31x = 85,883,433,158.96 - Step 5: Solve for x
x = 85,883,433,158.96/331,140.31 - Step 6: Final answer
x = 259,356.62
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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.