Finding the Fourth Proportional to 402,502.80, 603,235.80 and 308,542.80
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Solution
The fourth proportional to 402,502.80, 603,235.80 and 308,542.80 is: 462,416.81
Step by Step Solution
- Step 1: Write the proportion equation
402,502.80 : 603,235.80 = 308,542.80 : x - Step 2: Convert to fraction form
402,502.80/603,235.80 = 308,542.80/x - Step 3: Cross multiply
402,502.80x = 603,235.80 × 308,542.80 - Step 4: Simplify right side
402,502.80x = 186,124,062,792.24 - Step 5: Solve for x
x = 186,124,062,792.24/402,502.80 - Step 6: Final answer
x = 462,416.81
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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.