Finding the Fourth Proportional to 287,408.58, 431,134.74 and 97,810.26
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Solution
The fourth proportional to 287,408.58, 431,134.74 and 97,810.26 is: 146,722.83
Step by Step Solution
- Step 1: Write the proportion equation
287,408.58 : 431,134.74 = 97,810.26 : x - Step 2: Convert to fraction form
287,408.58/431,134.74 = 97,810.26/x - Step 3: Cross multiply
287,408.58x = 431,134.74 × 97,810.26 - Step 4: Simplify right side
287,408.58x = 42,169,401,014.43 - Step 5: Solve for x
x = 42,169,401,014.43/287,408.58 - Step 6: Final answer
x = 146,722.83
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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.