Finding the Fourth Proportional to 245,762.16, 339,162.58 and 138,339.06
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Solution
The fourth proportional to 245,762.16, 339,162.58 and 138,339.06 is: 190,913.98
Step by Step Solution
- Step 1: Write the proportion equation
245,762.16 : 339,162.58 = 138,339.06 : x - Step 2: Convert to fraction form
245,762.16/339,162.58 = 138,339.06/x - Step 3: Cross multiply
245,762.16x = 339,162.58 × 138,339.06 - Step 4: Simplify right side
245,762.16x = 46,919,432,504.37 - Step 5: Solve for x
x = 46,919,432,504.37/245,762.16 - Step 6: Final answer
x = 190,913.98
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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.