Finding the Fourth Proportional to 292,512.20, 438,768.30 and 239,368.10
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Solution
The fourth proportional to 292,512.20, 438,768.30 and 239,368.10 is: 359,052.15
Step by Step Solution
- Step 1: Write the proportion equation
292,512.20 : 438,768.30 = 239,368.10 : x - Step 2: Convert to fraction form
292,512.20/438,768.30 = 239,368.10/x - Step 3: Cross multiply
292,512.20x = 438,768.30 × 239,368.10 - Step 4: Simplify right side
292,512.20x = 105,027,134,311.23 - Step 5: Solve for x
x = 105,027,134,311.23/292,512.20 - Step 6: Final answer
x = 359,052.15
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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.