Finding the Fourth Proportional to 415,423.44, 623,135.16 and 99,880.34
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Solution
The fourth proportional to 415,423.44, 623,135.16 and 99,880.34 is: 149,820.50
Step by Step Solution
- Step 1: Write the proportion equation
415,423.44 : 623,135.16 = 99,880.34 : x - Step 2: Convert to fraction form
415,423.44/623,135.16 = 99,880.34/x - Step 3: Cross multiply
415,423.44x = 623,135.16 × 99,880.34 - Step 4: Simplify right side
415,423.44x = 62,238,948,531.08 - Step 5: Solve for x
x = 62,238,948,531.08/415,423.44 - Step 6: Final answer
x = 149,820.50
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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.