Finding the Fourth Proportional to 387,029.40, 580,544.10 and 235,470.30
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Solution
The fourth proportional to 387,029.40, 580,544.10 and 235,470.30 is: 353,205.45
Step by Step Solution
- Step 1: Write the proportion equation
387,029.40 : 580,544.10 = 235,470.30 : x - Step 2: Convert to fraction form
387,029.40/580,544.10 = 235,470.30/x - Step 3: Cross multiply
387,029.40x = 580,544.10 × 235,470.30 - Step 4: Simplify right side
387,029.40x = 136,700,893,390.23 - Step 5: Solve for x
x = 136,700,893,390.23/387,029.40 - Step 6: Final answer
x = 353,205.45
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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.