Finding the Fourth Proportional to 287,109.24, 430,227.36 and 137,143.02
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Solution
The fourth proportional to 287,109.24, 430,227.36 and 137,143.02 is: 205,506.03
Step by Step Solution
- Step 1: Write the proportion equation
287,109.24 : 430,227.36 = 137,143.02 : x - Step 2: Convert to fraction form
287,109.24/430,227.36 = 137,143.02/x - Step 3: Cross multiply
287,109.24x = 430,227.36 × 137,143.02 - Step 4: Simplify right side
287,109.24x = 59,002,679,437.03 - Step 5: Solve for x
x = 59,002,679,437.03/287,109.24 - Step 6: Final answer
x = 205,506.03
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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.