Finding the Fourth Proportional to 347,719.10, 479,381.19 and 297,273.74
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Solution
The fourth proportional to 347,719.10, 479,381.19 and 297,273.74 is: 409,834.95
Step by Step Solution
- Step 1: Write the proportion equation
347,719.10 : 479,381.19 = 297,273.74 : x - Step 2: Convert to fraction form
347,719.10/479,381.19 = 297,273.74/x - Step 3: Cross multiply
347,719.10x = 479,381.19 × 297,273.74 - Step 4: Simplify right side
347,719.10x = 142,507,439,236.95 - Step 5: Solve for x
x = 142,507,439,236.95/347,719.10 - Step 6: Final answer
x = 409,834.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.