Finding the Fourth Proportional to 345,369.25, 518,349.12 and 135,154.81
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Solution
The fourth proportional to 345,369.25, 518,349.12 and 135,154.81 is: 202,847.75
Step by Step Solution
- Step 1: Write the proportion equation
345,369.25 : 518,349.12 = 135,154.81 : x - Step 2: Convert to fraction form
345,369.25/518,349.12 = 135,154.81/x - Step 3: Cross multiply
345,369.25x = 518,349.12 × 135,154.81 - Step 4: Simplify right side
345,369.25x = 70,057,376,827.27 - Step 5: Solve for x
x = 70,057,376,827.27/345,369.25 - Step 6: Final answer
x = 202,847.75
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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.