Finding the Fourth Proportional to 291,713.20, 436,913.70 and 173,615.20
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Solution
The fourth proportional to 291,713.20, 436,913.70 and 173,615.20 is: 260,032.32
Step by Step Solution
- Step 1: Write the proportion equation
291,713.20 : 436,913.70 = 173,615.20 : x - Step 2: Convert to fraction form
291,713.20/436,913.70 = 173,615.20/x - Step 3: Cross multiply
291,713.20x = 436,913.70 × 173,615.20 - Step 4: Simplify right side
291,713.20x = 75,854,859,408.24 - Step 5: Solve for x
x = 75,854,859,408.24/291,713.20 - Step 6: Final answer
x = 260,032.32
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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.