Finding the Fourth Proportional to 282,900.08, 390,394.33 and 155,575.67
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Solution
The fourth proportional to 282,900.08, 390,394.33 and 155,575.67 is: 214,690.15
Step by Step Solution
- Step 1: Write the proportion equation
282,900.08 : 390,394.33 = 155,575.67 : x - Step 2: Convert to fraction form
282,900.08/390,394.33 = 155,575.67/x - Step 3: Cross multiply
282,900.08x = 390,394.33 × 155,575.67 - Step 4: Simplify right side
282,900.08x = 60,735,860,846.59 - Step 5: Solve for x
x = 60,735,860,846.59/282,900.08 - Step 6: Final answer
x = 214,690.15
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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.