Finding the Fourth Proportional to 260,270.64, 390,405.96 and 82,777.68
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Solution
The fourth proportional to 260,270.64, 390,405.96 and 82,777.68 is: 124,166.52
Step by Step Solution
- Step 1: Write the proportion equation
260,270.64 : 390,405.96 = 82,777.68 : x - Step 2: Convert to fraction form
260,270.64/390,405.96 = 82,777.68/x - Step 3: Cross multiply
260,270.64x = 390,405.96 × 82,777.68 - Step 4: Simplify right side
260,270.64x = 32,316,899,626.97 - Step 5: Solve for x
x = 32,316,899,626.97/260,270.64 - Step 6: Final answer
x = 124,166.52
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1.5x scale
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.