Finding the Fourth Proportional to 386,027.48, 578,973.12 and 149,175.44
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Solution
The fourth proportional to 386,027.48, 578,973.12 and 149,175.44 is: 223,736.84
Step by Step Solution
- Step 1: Write the proportion equation
386,027.48 : 578,973.12 = 149,175.44 : x - Step 2: Convert to fraction form
386,027.48/578,973.12 = 149,175.44/x - Step 3: Cross multiply
386,027.48x = 578,973.12 × 149,175.44 - Step 4: Simplify right side
386,027.48x = 86,368,569,924.17 - Step 5: Solve for x
x = 86,368,569,924.17/386,027.48 - Step 6: Final answer
x = 223,736.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.