Finding the Fourth Proportional to 311,907.24, 430,429.95 and 168,666.71
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Solution
The fourth proportional to 311,907.24, 430,429.95 and 168,666.71 is: 232,758.95
Step by Step Solution
- Step 1: Write the proportion equation
311,907.24 : 430,429.95 = 168,666.71 : x - Step 2: Convert to fraction form
311,907.24/430,429.95 = 168,666.71/x - Step 3: Cross multiply
311,907.24x = 430,429.95 × 168,666.71 - Step 4: Simplify right side
311,907.24x = 72,599,201,399.81 - Step 5: Solve for x
x = 72,599,201,399.81/311,907.24 - Step 6: Final answer
x = 232,758.95
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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.