Finding the Fourth Proportional to 243,637.74, 336,227.49 and 136,212.30
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Solution
The fourth proportional to 243,637.74, 336,227.49 and 136,212.30 is: 187,977.12
Step by Step Solution
- Step 1: Write the proportion equation
243,637.74 : 336,227.49 = 136,212.30 : x - Step 2: Convert to fraction form
243,637.74/336,227.49 = 136,212.30/x - Step 3: Cross multiply
243,637.74x = 336,227.49 × 136,212.30 - Step 4: Simplify right side
243,637.74x = 45,798,319,736.13 - Step 5: Solve for x
x = 45,798,319,736.13/243,637.74 - Step 6: Final answer
x = 187,977.12
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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.