Finding the Fourth Proportional to 257,566.20, 386,430.30 and 124,450.80
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Solution
The fourth proportional to 257,566.20, 386,430.30 and 124,450.80 is: 186,715.34
Step by Step Solution
- Step 1: Write the proportion equation
257,566.20 : 386,430.30 = 124,450.80 : x - Step 2: Convert to fraction form
257,566.20/386,430.30 = 124,450.80/x - Step 3: Cross multiply
257,566.20x = 386,430.30 × 124,450.80 - Step 4: Simplify right side
257,566.20x = 48,091,559,979.24 - Step 5: Solve for x
x = 48,091,559,979.24/257,566.20 - Step 6: Final answer
x = 186,715.34
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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.