Finding the Fourth Proportional to 387,324.36, 580,461.12 and 187,246.26
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Solution
The fourth proportional to 387,324.36, 580,461.12 and 187,246.26 is: 280,615.38
Step by Step Solution
- Step 1: Write the proportion equation
387,324.36 : 580,461.12 = 187,246.26 : x - Step 2: Convert to fraction form
387,324.36/580,461.12 = 187,246.26/x - Step 3: Cross multiply
387,324.36x = 580,461.12 × 187,246.26 - Step 4: Simplify right side
387,324.36x = 108,689,173,795.41 - Step 5: Solve for x
x = 108,689,173,795.41/387,324.36 - Step 6: Final answer
x = 280,615.38
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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.