Finding the Fourth Proportional to 457,729.57, 686,624.60 and 158,239.09
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Solution
The fourth proportional to 457,729.57, 686,624.60 and 158,239.09 is: 237,369.09
Step by Step Solution
- Step 1: Write the proportion equation
457,729.57 : 686,624.60 = 158,239.09 : x - Step 2: Convert to fraction form
457,729.57/686,624.60 = 158,239.09/x - Step 3: Cross multiply
457,729.57x = 686,624.60 × 158,239.09 - Step 4: Simplify right side
457,729.57x = 108,650,851,875.61 - Step 5: Solve for x
x = 108,650,851,875.61/457,729.57 - Step 6: Final answer
x = 237,369.09
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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.