Finding the Fourth Proportional to 289,374.53, 399,327.57 and 160,307.71
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Solution
The fourth proportional to 289,374.53, 399,327.57 and 160,307.71 is: 221,219.50
Step by Step Solution
- Step 1: Write the proportion equation
289,374.53 : 399,327.57 = 160,307.71 : x - Step 2: Convert to fraction form
289,374.53/399,327.57 = 160,307.71/x - Step 3: Cross multiply
289,374.53x = 399,327.57 × 160,307.71 - Step 4: Simplify right side
289,374.53x = 64,015,287,288.25 - Step 5: Solve for x
x = 64,015,287,288.25/289,374.53 - Step 6: Final answer
x = 221,219.50
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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.