Finding the Fourth Proportional to 430,577.98, 645,447.99 and 205,880.13
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Solution
The fourth proportional to 430,577.98, 645,447.99 and 205,880.13 is: 308,619.86
Step by Step Solution
- Step 1: Write the proportion equation
430,577.98 : 645,447.99 = 205,880.13 : x - Step 2: Convert to fraction form
430,577.98/645,447.99 = 205,880.13/x - Step 3: Cross multiply
430,577.98x = 645,447.99 × 205,880.13 - Step 4: Simplify right side
430,577.98x = 132,884,916,861.49 - Step 5: Solve for x
x = 132,884,916,861.49/430,577.98 - Step 6: Final answer
x = 308,619.86
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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.