Finding the Fourth Proportional to 420,245.50, 630,283.50 and 153,915.08
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Solution
The fourth proportional to 420,245.50, 630,283.50 and 153,915.08 is: 230,841.58
Step by Step Solution
- Step 1: Write the proportion equation
420,245.50 : 630,283.50 = 153,915.08 : x - Step 2: Convert to fraction form
420,245.50/630,283.50 = 153,915.08/x - Step 3: Cross multiply
420,245.50x = 630,283.50 × 153,915.08 - Step 4: Simplify right side
420,245.50x = 97,010,135,325.18 - Step 5: Solve for x
x = 97,010,135,325.18/420,245.50 - Step 6: Final answer
x = 230,841.58
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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.