Finding the Fourth Proportional to 283,266.12, 390,910.68 and 155,950.32
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Solution
The fourth proportional to 283,266.12, 390,910.68 and 155,950.32 is: 215,213.33
Step by Step Solution
- Step 1: Write the proportion equation
283,266.12 : 390,910.68 = 155,950.32 : x - Step 2: Convert to fraction form
283,266.12/390,910.68 = 155,950.32/x - Step 3: Cross multiply
283,266.12x = 390,910.68 × 155,950.32 - Step 4: Simplify right side
283,266.12x = 60,962,645,637.42 - Step 5: Solve for x
x = 60,962,645,637.42/283,266.12 - Step 6: Final answer
x = 215,213.33
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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.