Finding the Fourth Proportional to 430,690.16, 645,324.30 and 250,269.08
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Solution
The fourth proportional to 430,690.16, 645,324.30 and 250,269.08 is: 374,990.50
Step by Step Solution
- Step 1: Write the proportion equation
430,690.16 : 645,324.30 = 250,269.08 : x - Step 2: Convert to fraction form
430,690.16/645,324.30 = 250,269.08/x - Step 3: Cross multiply
430,690.16x = 645,324.30 × 250,269.08 - Step 4: Simplify right side
430,690.16x = 161,504,718,862.64 - Step 5: Solve for x
x = 161,504,718,862.64/430,690.16 - Step 6: Final answer
x = 374,990.50
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1.5x scale
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.