Finding the Fourth Proportional to 248,439.54, 342,854.99 and 139,563.08
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Solution
The fourth proportional to 248,439.54, 342,854.99 and 139,563.08 is: 192,601.79
Step by Step Solution
- Step 1: Write the proportion equation
248,439.54 : 342,854.99 = 139,563.08 : x - Step 2: Convert to fraction form
248,439.54/342,854.99 = 139,563.08/x - Step 3: Cross multiply
248,439.54x = 342,854.99 × 139,563.08 - Step 4: Simplify right side
248,439.54x = 47,849,900,508.35 - Step 5: Solve for x
x = 47,849,900,508.35/248,439.54 - Step 6: Final answer
x = 192,601.79
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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.