Finding the Fourth Proportional to 345,439.31, 518,314.47 and 187,430.99
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Solution
The fourth proportional to 345,439.31, 518,314.47 and 187,430.99 is: 281,230.86
Step by Step Solution
- Step 1: Write the proportion equation
345,439.31 : 518,314.47 = 187,430.99 : x - Step 2: Convert to fraction form
345,439.31/518,314.47 = 187,430.99/x - Step 3: Cross multiply
345,439.31x = 518,314.47 × 187,430.99 - Step 4: Simplify right side
345,439.31x = 97,148,191,651.85 - Step 5: Solve for x
x = 97,148,191,651.85/345,439.31 - Step 6: Final answer
x = 281,230.86
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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.