Finding the Fourth Proportional to 316,859.13, 437,265.63 and 189,564.75
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Solution
The fourth proportional to 316,859.13, 437,265.63 and 189,564.75 is: 261,599.37
Step by Step Solution
- Step 1: Write the proportion equation
316,859.13 : 437,265.63 = 189,564.75 : x - Step 2: Convert to fraction form
316,859.13/437,265.63 = 189,564.75/x - Step 3: Cross multiply
316,859.13x = 437,265.63 × 189,564.75 - Step 4: Simplify right side
316,859.13x = 82,890,149,834.54 - Step 5: Solve for x
x = 82,890,149,834.54/316,859.13 - Step 6: Final answer
x = 261,599.37
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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.