Finding the Fourth Proportional to 303,579.20, 455,368.80 and 103,881.80
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Solution
The fourth proportional to 303,579.20, 455,368.80 and 103,881.80 is: 155,822.70
Step by Step Solution
- Step 1: Write the proportion equation
303,579.20 : 455,368.80 = 103,881.80 : x - Step 2: Convert to fraction form
303,579.20/455,368.80 = 103,881.80/x - Step 3: Cross multiply
303,579.20x = 455,368.80 × 103,881.80 - Step 4: Simplify right side
303,579.20x = 47,304,530,607.84 - Step 5: Solve for x
x = 47,304,530,607.84/303,579.20 - Step 6: Final answer
x = 155,822.70
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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.