Finding the Fourth Proportional to 239,149.85, 330,020.01 and 130,251.74
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Solution
The fourth proportional to 239,149.85, 330,020.01 and 130,251.74 is: 179,743.70
Step by Step Solution
- Step 1: Write the proportion equation
239,149.85 : 330,020.01 = 130,251.74 : x - Step 2: Convert to fraction form
239,149.85/330,020.01 = 130,251.74/x - Step 3: Cross multiply
239,149.85x = 330,020.01 × 130,251.74 - Step 4: Simplify right side
239,149.85x = 42,985,678,887.22 - Step 5: Solve for x
x = 42,985,678,887.22/239,149.85 - Step 6: Final answer
x = 179,743.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.