Finding the Fourth Proportional to 245,628.24, 368,611.47 and 85,705.08
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Solution
The fourth proportional to 245,628.24, 368,611.47 and 85,705.08 is: 128,616.63
Step by Step Solution
- Step 1: Write the proportion equation
245,628.24 : 368,611.47 = 85,705.08 : x - Step 2: Convert to fraction form
245,628.24/368,611.47 = 85,705.08/x - Step 3: Cross multiply
245,628.24x = 368,611.47 × 85,705.08 - Step 4: Simplify right side
245,628.24x = 31,591,875,525.27 - Step 5: Solve for x
x = 31,591,875,525.27/245,628.24 - Step 6: Final answer
x = 128,616.63
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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.