Finding the Fourth Proportional to 245,874.93, 339,303.60 and 138,444.63
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Solution
The fourth proportional to 245,874.93, 339,303.60 and 138,444.63 is: 191,051.45
Step by Step Solution
- Step 1: Write the proportion equation
245,874.93 : 339,303.60 = 138,444.63 : x - Step 2: Convert to fraction form
245,874.93/339,303.60 = 138,444.63/x - Step 3: Cross multiply
245,874.93x = 339,303.60 × 138,444.63 - Step 4: Simplify right side
245,874.93x = 46,974,761,359.67 - Step 5: Solve for x
x = 46,974,761,359.67/245,874.93 - Step 6: Final answer
x = 191,051.45
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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.