Finding the Fourth Proportional to 345,369.75, 518,349.87 and 135,155.31
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Solution
The fourth proportional to 345,369.75, 518,349.87 and 135,155.31 is: 202,848.50
Step by Step Solution
- Step 1: Write the proportion equation
345,369.75 : 518,349.87 = 135,155.31 : x - Step 2: Convert to fraction form
345,369.75/518,349.87 = 135,155.31/x - Step 3: Cross multiply
345,369.75x = 518,349.87 × 135,155.31 - Step 4: Simplify right side
345,369.75x = 70,057,737,368.31 - Step 5: Solve for x
x = 70,057,737,368.31/345,369.75 - Step 6: Final answer
x = 202,848.50
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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.