Finding the Fourth Proportional to 421,564.44, 581,772.78 and 230,577.81
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Solution
The fourth proportional to 421,564.44, 581,772.78 and 230,577.81 is: 318,204.95
Step by Step Solution
- Step 1: Write the proportion equation
421,564.44 : 581,772.78 = 230,577.81 : x - Step 2: Convert to fraction form
421,564.44/581,772.78 = 230,577.81/x - Step 3: Cross multiply
421,564.44x = 581,772.78 × 230,577.81 - Step 4: Simplify right side
421,564.44x = 134,143,893,530.01 - Step 5: Solve for x
x = 134,143,893,530.01/421,564.44 - Step 6: Final answer
x = 318,204.95
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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.