Finding the Fourth Proportional to 260,141.91, 358,988.29 and 145,420.75
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Solution
The fourth proportional to 260,141.91, 358,988.29 and 145,420.75 is: 200,676.42
Step by Step Solution
- Step 1: Write the proportion equation
260,141.91 : 358,988.29 = 145,420.75 : x - Step 2: Convert to fraction form
260,141.91/358,988.29 = 145,420.75/x - Step 3: Cross multiply
260,141.91x = 358,988.29 × 145,420.75 - Step 4: Simplify right side
260,141.91x = 52,204,346,373.02 - Step 5: Solve for x
x = 52,204,346,373.02/260,141.91 - Step 6: Final answer
x = 200,676.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.