Finding the Fourth Proportional to 399,327.79, 551,075.04 and 218,040.99
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Solution
The fourth proportional to 399,327.79, 551,075.04 and 218,040.99 is: 300,898.03
Step by Step Solution
- Step 1: Write the proportion equation
399,327.79 : 551,075.04 = 218,040.99 : x - Step 2: Convert to fraction form
399,327.79/551,075.04 = 218,040.99/x - Step 3: Cross multiply
399,327.79x = 551,075.04 × 218,040.99 - Step 4: Simplify right side
399,327.79x = 120,156,947,285.89 - Step 5: Solve for x
x = 120,156,947,285.89/399,327.79 - Step 6: Final answer
x = 300,898.03
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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.