Finding the Fourth Proportional to 331,431.16, 457,548.09 and 258,677.80
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Solution
The fourth proportional to 331,431.16, 457,548.09 and 258,677.80 is: 357,110.46
Step by Step Solution
- Step 1: Write the proportion equation
331,431.16 : 457,548.09 = 258,677.80 : x - Step 2: Convert to fraction form
331,431.16/457,548.09 = 258,677.80/x - Step 3: Cross multiply
331,431.16x = 457,548.09 × 258,677.80 - Step 4: Simplify right side
331,431.16x = 118,357,533,315.40 - Step 5: Solve for x
x = 118,357,533,315.40/331,431.16 - Step 6: Final answer
x = 357,110.46
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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.