Finding the Fourth Proportional to 245,444.84, 338,707.16 and 138,012.12
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Solution
The fourth proportional to 245,444.84, 338,707.16 and 138,012.12 is: 190,452.95
Step by Step Solution
- Step 1: Write the proportion equation
245,444.84 : 338,707.16 = 138,012.12 : x - Step 2: Convert to fraction form
245,444.84/338,707.16 = 138,012.12/x - Step 3: Cross multiply
245,444.84x = 338,707.16 × 138,012.12 - Step 4: Simplify right side
245,444.84x = 46,745,693,210.78 - Step 5: Solve for x
x = 46,745,693,210.78/245,444.84 - Step 6: Final answer
x = 190,452.95
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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.