Finding the Fourth Proportional to 429,655.92, 644,779.68 and 149,173.20
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Solution
The fourth proportional to 429,655.92, 644,779.68 and 149,173.20 is: 223,862.50
Step by Step Solution
- Step 1: Write the proportion equation
429,655.92 : 644,779.68 = 149,173.20 : x - Step 2: Convert to fraction form
429,655.92/644,779.68 = 149,173.20/x - Step 3: Cross multiply
429,655.92x = 644,779.68 × 149,173.20 - Step 4: Simplify right side
429,655.92x = 96,183,848,160.58 - Step 5: Solve for x
x = 96,183,848,160.58/429,655.92 - Step 6: Final answer
x = 223,862.50
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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.