Finding the Fourth Proportional to 245,762.16, 339,162.60 and 138,339.08
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Solution
The fourth proportional to 245,762.16, 339,162.60 and 138,339.08 is: 190,914.02
Step by Step Solution
- Step 1: Write the proportion equation
245,762.16 : 339,162.60 = 138,339.08 : x - Step 2: Convert to fraction form
245,762.16/339,162.60 = 138,339.08/x - Step 3: Cross multiply
245,762.16x = 339,162.60 × 138,339.08 - Step 4: Simplify right side
245,762.16x = 46,919,442,054.41 - Step 5: Solve for x
x = 46,919,442,054.41/245,762.16 - Step 6: Final answer
x = 190,914.02
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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.