Finding the Fourth Proportional to 320,027.36, 480,039.30 and 130,486.98
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Solution
The fourth proportional to 320,027.36, 480,039.30 and 130,486.98 is: 195,729.76
Step by Step Solution
- Step 1: Write the proportion equation
320,027.36 : 480,039.30 = 130,486.98 : x - Step 2: Convert to fraction form
320,027.36/480,039.30 = 130,486.98/x - Step 3: Cross multiply
320,027.36x = 480,039.30 × 130,486.98 - Step 4: Simplify right side
320,027.36x = 62,638,878,538.31 - Step 5: Solve for x
x = 62,638,878,538.31/320,027.36 - Step 6: Final answer
x = 195,729.76
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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.