Finding the Fourth Proportional to 314,513.80, 434,176.14 and 201,401.08
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Solution
The fourth proportional to 314,513.80, 434,176.14 and 201,401.08 is: 278,027.68
Step by Step Solution
- Step 1: Write the proportion equation
314,513.80 : 434,176.14 = 201,401.08 : x - Step 2: Convert to fraction form
314,513.80/434,176.14 = 201,401.08/x - Step 3: Cross multiply
314,513.80x = 434,176.14 × 201,401.08 - Step 4: Simplify right side
314,513.80x = 87,443,543,506.23 - Step 5: Solve for x
x = 87,443,543,506.23/314,513.80 - Step 6: Final answer
x = 278,027.68
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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.