Finding the Fourth Proportional to 287,089.09, 430,344.16 and 180,549.18
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Solution
The fourth proportional to 287,089.09, 430,344.16 and 180,549.18 is: 270,641.72
Step by Step Solution
- Step 1: Write the proportion equation
287,089.09 : 430,344.16 = 180,549.18 : x - Step 2: Convert to fraction form
287,089.09/430,344.16 = 180,549.18/x - Step 3: Cross multiply
287,089.09x = 430,344.16 × 180,549.18 - Step 4: Simplify right side
287,089.09x = 77,698,284,754.42 - Step 5: Solve for x
x = 77,698,284,754.42/287,089.09 - Step 6: Final answer
x = 270,641.72
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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.