Finding the Fourth Proportional to 665,193.60, 997,498.80 and 265,701.60
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Solution
The fourth proportional to 665,193.60, 997,498.80 and 265,701.60 is: 398,435.92
Step by Step Solution
- Step 1: Write the proportion equation
665,193.60 : 997,498.80 = 265,701.60 : x - Step 2: Convert to fraction form
665,193.60/997,498.80 = 265,701.60/x - Step 3: Cross multiply
665,193.60x = 997,498.80 × 265,701.60 - Step 4: Simplify right side
665,193.60x = 265,037,027,158.08 - Step 5: Solve for x
x = 265,037,027,158.08/665,193.60 - Step 6: Final answer
x = 398,435.92
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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.