Finding the Fourth Proportional to 294,912.99, 406,985.72 and 160,776.99
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Solution
The fourth proportional to 294,912.99, 406,985.72 and 160,776.99 is: 221,875.40
Step by Step Solution
- Step 1: Write the proportion equation
294,912.99 : 406,985.72 = 160,776.99 : x - Step 2: Convert to fraction form
294,912.99/406,985.72 = 160,776.99/x - Step 3: Cross multiply
294,912.99x = 406,985.72 × 160,776.99 - Step 4: Simplify right side
294,912.99x = 65,433,938,230.70 - Step 5: Solve for x
x = 65,433,938,230.70/294,912.99 - Step 6: Final answer
x = 221,875.40
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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.