Finding the Fourth Proportional to 513,317.31, 769,779.94 and 205,475.19
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Solution
The fourth proportional to 513,317.31, 769,779.94 and 205,475.19 is: 308,134.32
Step by Step Solution
- Step 1: Write the proportion equation
513,317.31 : 769,779.94 = 205,475.19 : x - Step 2: Convert to fraction form
513,317.31/769,779.94 = 205,475.19/x - Step 3: Cross multiply
513,317.31x = 769,779.94 × 205,475.19 - Step 4: Simplify right side
513,317.31x = 158,170,679,429.69 - Step 5: Solve for x
x = 158,170,679,429.69/513,317.31 - Step 6: Final answer
x = 308,134.32
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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.