Finding the Fourth Proportional to 207,069.30, 310,603.95 and 140,147.10
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Solution
The fourth proportional to 207,069.30, 310,603.95 and 140,147.10 is: 210,220.65
Step by Step Solution
- Step 1: Write the proportion equation
207,069.30 : 310,603.95 = 140,147.10 : x - Step 2: Convert to fraction form
207,069.30/310,603.95 = 140,147.10/x - Step 3: Cross multiply
207,069.30x = 310,603.95 × 140,147.10 - Step 4: Simplify right side
207,069.30x = 43,530,242,841.05 - Step 5: Solve for x
x = 43,530,242,841.05/207,069.30 - Step 6: Final answer
x = 210,220.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.